The document discusses different types of input devices used in computer systems. It describes keyboards, pointing devices like mice, and other input methods. Keyboards allow users to manually enter text and commands into computers. Mice and other pointing devices allow users to interact with graphical user interfaces by selecting icons and menus. The document categorizes and describes various keyboards layouts and types of mice, including mechanical, optical, wired, wireless, and those with different numbers of buttons. It provides details on how these common input devices work and interface with computer systems.
The document discusses various input devices used to input data and instructions into computers. It describes keyboards, mice, joysticks, touch screens, microphones, scanners, and bar code readers. Keyboards are the most commonly used input device and come in normal and multimedia varieties. Mice can be traditional ball mice or newer optical mice. Scanners convert printed images to digital form, and can be flatbed or handheld models.
The document discusses various types of output devices used by computers. It describes visual display units (VDUs or monitors), printers, plotters, and speakers. It provides details on different types of printers like dot matrix, inkjet, daisy wheel, and laser printers. It explains that output devices display, print, or transmit the results of processing from the computer's memory. Monitors can display graphics, text, and video, while printers provide hard copies in various speeds and qualities. Plotters are useful for engineering drawings and produce high quality outputs. Speakers convert electrical signals to sound.
Input and Output Devices of Computers (Powerpoint Presentation)Anjenette Columnas
A Powerpoint Presentation about Input and Output Devices of Computers in the Computer Subject. I'm now a professional teacher and this powerpoint presentation was used during my teaching demonstration in Sicayab National High School.
This document introduces the key components of a graphical user interface (GUI). It discusses GUI elements like windows, icons, text boxes, menus, buttons, radio buttons, and check boxes. Windows display the output and allow for input. Text boxes and fields allow users to enter text. Menus present a list of options. Buttons allow selecting options. Radio buttons select only one option in a group, while check boxes allow multiple selections. The GUI uses these visual elements to provide an easier interface than text-based commands.
This document discusses input and output devices for computers. It describes keyboards, mice, and other pointing devices as common input devices for entering data, software, and commands. It also discusses monitors, printers, and other devices as output mechanisms for displaying and printing processed data in text, graphic, audio, and video formats. The mouse is highlighted as the most widely used pointing device for selecting on-screen items.
Input devices allow users to input data and instructions into a computer system. The keyboard and mouse are commonly used input devices that allow typing and pointing respectively. Other input devices include microphones, touchpads, light pens, digital cameras, optical mark readers, barcode readers, scanners, and touch screens, each of which facilitates a different type of input such as audio, hand gestures, drawings, photographs, test responses, product codes, documents, and touch interactions.
The document discusses different types of input devices used in computer systems. It describes keyboards, pointing devices like mice, and other input methods. Keyboards allow users to manually enter text and commands into computers. Mice and other pointing devices allow users to interact with graphical user interfaces by selecting icons and menus. The document categorizes and describes various keyboards layouts and types of mice, including mechanical, optical, wired, wireless, and those with different numbers of buttons. It provides details on how these common input devices work and interface with computer systems.
The document discusses various input devices used to input data and instructions into computers. It describes keyboards, mice, joysticks, touch screens, microphones, scanners, and bar code readers. Keyboards are the most commonly used input device and come in normal and multimedia varieties. Mice can be traditional ball mice or newer optical mice. Scanners convert printed images to digital form, and can be flatbed or handheld models.
The document discusses various types of output devices used by computers. It describes visual display units (VDUs or monitors), printers, plotters, and speakers. It provides details on different types of printers like dot matrix, inkjet, daisy wheel, and laser printers. It explains that output devices display, print, or transmit the results of processing from the computer's memory. Monitors can display graphics, text, and video, while printers provide hard copies in various speeds and qualities. Plotters are useful for engineering drawings and produce high quality outputs. Speakers convert electrical signals to sound.
Input and Output Devices of Computers (Powerpoint Presentation)Anjenette Columnas
A Powerpoint Presentation about Input and Output Devices of Computers in the Computer Subject. I'm now a professional teacher and this powerpoint presentation was used during my teaching demonstration in Sicayab National High School.
This document introduces the key components of a graphical user interface (GUI). It discusses GUI elements like windows, icons, text boxes, menus, buttons, radio buttons, and check boxes. Windows display the output and allow for input. Text boxes and fields allow users to enter text. Menus present a list of options. Buttons allow selecting options. Radio buttons select only one option in a group, while check boxes allow multiple selections. The GUI uses these visual elements to provide an easier interface than text-based commands.
This document discusses input and output devices for computers. It describes keyboards, mice, and other pointing devices as common input devices for entering data, software, and commands. It also discusses monitors, printers, and other devices as output mechanisms for displaying and printing processed data in text, graphic, audio, and video formats. The mouse is highlighted as the most widely used pointing device for selecting on-screen items.
Input devices allow users to input data and instructions into a computer system. The keyboard and mouse are commonly used input devices that allow typing and pointing respectively. Other input devices include microphones, touchpads, light pens, digital cameras, optical mark readers, barcode readers, scanners, and touch screens, each of which facilitates a different type of input such as audio, hand gestures, drawings, photographs, test responses, product codes, documents, and touch interactions.
This document discusses graphical user interfaces (GUIs). It defines a GUI as a user interface that allows interaction through graphical icons, audio indicators, and pictures. The key features of a GUI include windows, icons, menus, and pointers. GUIs are easy to learn and use, allow quick switching between tasks, and replace multiple instructions with single icons. However, GUIs may consume more screen space and system resources and be slower than other interfaces.
This document discusses hardware and software components of computer systems. It defines hardware as the physical aspects like keyboards and monitors, and software as programs that operate computers. There are six categories of hardware including input, output, storage, CPU, telecommunications, and connecting devices. Software is divided into application software for specific tasks and system software that manages hardware interaction and supports applications. Examples of application software include word processors and spreadsheets, while operating systems are an example of system software.
Pointing devices are hardware input tools used to control the cursor on a computer screen and include mice, trackballs, touchpads, and more. Mice are the most common pointing device and use movement of the device to move the on-screen cursor in the same direction. Other pointing devices include trackballs, which contain a ball that is rolled to move the cursor, and touchpads, which are flat surfaces that track finger movement to control the cursor. Pointing devices allow users to perform functions like selecting text, icons, and menus.
1. The document discusses various input and output devices used in computers. It describes the working of keyboards, mice, scanners, printers, and monitors.
2. Keyboards allow data entry by pressing keys and send scan codes to the CPU when a key is pressed. Mice translate motion into signals using rollers, balls, or cameras to move cursors. Scanners convert documents into digital formats.
3. Printers produce hard copies of text and graphics using technologies like inkjet, laser, or impact printing. Monitors display visual output using techniques in CRT, LCD, plasma, or LED screens.
The document discusses different types of computer printers. It explains that printers are output devices that provide a hard copy of data. It describes impact printers, such as dot matrix and daisy wheel printers, which physically strike an ink ribbon to print, and non-impact printers like inkjet and laser printers which print without touching the paper. It provides details on how various impact and non-impact printers work.
Graphical User Interface (GUI) is a visual way for users to interact with a computer program using graphical elements like windows, icons, menus, etc. rather than text-based commands. A GUI makes programs easier to use by presenting commands visually and allowing users to perform actions by clicking on screen elements rather than memorizing commands. Well-designed GUIs help users avoid complex text commands by providing intuitive graphical layouts and controls.
This document describes various common input devices for computers. It discusses keyboards, mice, joysticks, light pens, trackballs, scanners, graphic tablets, microphones, magnetic ink card readers, optical character readers, bar code readers, and optical mark readers. These input devices allow humans to interact with computers by entering text, numbers, images, audio, and other data in digital form for processing.
The Control Panel document provides an overview of the Control Panel in Windows and describes its various applets. The Control Panel is a centralized location for system management utilities. It contains applets divided into categories for tasks like hardware/sound configuration, user account management, network settings, security options, and more. Each applet allows adjusting specific settings related to its category area.
This document discusses different types of operating systems, how operating systems load, and key concepts related to how operating systems function. It describes single-tasking and multi-tasking operating systems, as well as embedded operating systems designed for small devices. It explains how firmware performs initial checks and loads the operating system from a hard disk into memory. Finally, it defines concepts like buffers, polling, interrupts, handshaking, and utility software.
- The document provides an overview of basic Windows concepts, including the desktop, icons, buttons, shortcuts, taskbar, start button, system tray, recycle bin, internet explorer, and customization options.
- It explains what the desktop is, common icons like documents and computer, and elements like the taskbar, start button, and system tray.
- Shortcuts, the recycle bin, internet explorer, and customization features are also outlined.
The document discusses various computer input and output devices. It describes keyboards, mice, trackpads, trackballs, microphones, scanners, digital cameras, styluses, joysticks, and light pens as common input devices. Monitors, speakers, and printers are outlined as main output devices, with CRT and flat panel displays discussed for monitors. Impact and non-impact printers are also summarized.
This document discusses various input devices used for computer graphics workstations, including keyboards, mice, trackballs, spaceballs, joysticks, digitizers, image scanners, touch panels, light pens, and voice systems. These input devices allow users to input data, position screen cursors, select coordinates, and initiate graphics operations through mechanisms like buttons, wheels, sensors that detect motion and pressure, and voice recognition. Common input devices include mice, keyboards, graphics tablets, and touchscreens, while others like data gloves and spaceballs provide additional degrees of freedom for spatial input and manipulation in areas like virtual reality and 3D modeling.
Input and output devices allow interaction between users and computers. Input devices receive data for processing while output devices display or print the processed data. Common input devices include keyboards, mice, scanners, microphones, and webcams. Keyboards allow text input while pointing devices like mice allow navigation. Scanners digitize physical documents and images. Microphones and webcams capture audio and video.
The document discusses different types of user interfaces:
- Command line interfaces require users to type specific commands but need less system resources. They can be faster but require learning many commands.
- Menu driven interfaces present options through menus without requiring memorization of commands. However, they may be slower with too many nested menus.
- Graphical user interfaces (GUIs) use visual elements like windows, icons and pointers, making them very easy for beginners. GUIs are now the most common but require more system resources than other interfaces.
- The goal of any interface is to make a program easy to use through intuitive design, consistency, clear options and feedback.
Flatbed scanners are the most common and versatile scanner type. They scan documents placed on a glass surface using a light sensor and light source that sweep across the stationary document. Sheet feed scanners maximize throughput by moving documents past a stationary light source and sensor, while drum scanners provide the highest quality scans but are slower and more expensive. Microfilm and slide scanners are specialized for scanning film and photos. Digital cameras combine scanning and camera optics for a versatile scanning tool.
This document discusses various input and output devices used with computers. It describes common input devices like the mouse, keyboard, joystick, scanner, and barcode reader which are used to enter data and instructions into a computer. It then explains key output devices such as computer monitors, printers in different types like dot matrix, inkjet and laser, plotters which produce drawings, and microfilm/microfiche which store large amounts of data on film.
The document provides an overview of the typical configuration of a computer system. It describes the basic components of a computer including the input unit, central processing unit (CPU), memory unit, and output unit. The CPU consists of a control unit and arithmetic logic unit (ALU). The document then focuses on the motherboard, which contains the CPU, memory, expansion slots, and other electronic components. It discusses the characteristics, types, and components of motherboards such as the processor, BIOS, slots, disk controllers, ports, and power supply.
Introduction to Basic Computer Concepts PresentationAna Tan
The document discusses the history and evolution of computers from early calculating aids like the abacus to modern computers. It describes inventions like the Pascaline, the first mechanical calculator, the Difference Engine, an early mechanical computer, and the ENIAC, one of the first general-purpose electronic computers. It then discusses the development of personal computers starting in the 1970s and the introduction of devices like the Apple I, IBM PC, and early netbooks.
Microsoft Word is a word processing program that allows users to create documents by typing text and formatting it. Word is part of the Microsoft Office suite and is commonly used to create documents, save them, print them, and share them electronically. The document provides instructions on how to open and work with a basic Word document, including how to insert text, pictures, tables, and headers/footers and how to format text using fonts, alignment, line spacing, and other tools. It also describes how to check spelling and grammar, undo/redo actions, and close a Word document.
The document summarizes various types of computer system hardware including input, output, and storage devices. It describes keyboards and mice as common input devices used to enter text and navigate graphical user interfaces. Monitors and printers are mentioned as typical output devices to display and print information. Storage devices discussed include removable media, hard drives, and solid state drives used to permanently store electronic data.
This document discusses graphical user interfaces (GUIs). It defines a GUI as a user interface that allows interaction through graphical icons, audio indicators, and pictures. The key features of a GUI include windows, icons, menus, and pointers. GUIs are easy to learn and use, allow quick switching between tasks, and replace multiple instructions with single icons. However, GUIs may consume more screen space and system resources and be slower than other interfaces.
This document discusses hardware and software components of computer systems. It defines hardware as the physical aspects like keyboards and monitors, and software as programs that operate computers. There are six categories of hardware including input, output, storage, CPU, telecommunications, and connecting devices. Software is divided into application software for specific tasks and system software that manages hardware interaction and supports applications. Examples of application software include word processors and spreadsheets, while operating systems are an example of system software.
Pointing devices are hardware input tools used to control the cursor on a computer screen and include mice, trackballs, touchpads, and more. Mice are the most common pointing device and use movement of the device to move the on-screen cursor in the same direction. Other pointing devices include trackballs, which contain a ball that is rolled to move the cursor, and touchpads, which are flat surfaces that track finger movement to control the cursor. Pointing devices allow users to perform functions like selecting text, icons, and menus.
1. The document discusses various input and output devices used in computers. It describes the working of keyboards, mice, scanners, printers, and monitors.
2. Keyboards allow data entry by pressing keys and send scan codes to the CPU when a key is pressed. Mice translate motion into signals using rollers, balls, or cameras to move cursors. Scanners convert documents into digital formats.
3. Printers produce hard copies of text and graphics using technologies like inkjet, laser, or impact printing. Monitors display visual output using techniques in CRT, LCD, plasma, or LED screens.
The document discusses different types of computer printers. It explains that printers are output devices that provide a hard copy of data. It describes impact printers, such as dot matrix and daisy wheel printers, which physically strike an ink ribbon to print, and non-impact printers like inkjet and laser printers which print without touching the paper. It provides details on how various impact and non-impact printers work.
Graphical User Interface (GUI) is a visual way for users to interact with a computer program using graphical elements like windows, icons, menus, etc. rather than text-based commands. A GUI makes programs easier to use by presenting commands visually and allowing users to perform actions by clicking on screen elements rather than memorizing commands. Well-designed GUIs help users avoid complex text commands by providing intuitive graphical layouts and controls.
This document describes various common input devices for computers. It discusses keyboards, mice, joysticks, light pens, trackballs, scanners, graphic tablets, microphones, magnetic ink card readers, optical character readers, bar code readers, and optical mark readers. These input devices allow humans to interact with computers by entering text, numbers, images, audio, and other data in digital form for processing.
The Control Panel document provides an overview of the Control Panel in Windows and describes its various applets. The Control Panel is a centralized location for system management utilities. It contains applets divided into categories for tasks like hardware/sound configuration, user account management, network settings, security options, and more. Each applet allows adjusting specific settings related to its category area.
This document discusses different types of operating systems, how operating systems load, and key concepts related to how operating systems function. It describes single-tasking and multi-tasking operating systems, as well as embedded operating systems designed for small devices. It explains how firmware performs initial checks and loads the operating system from a hard disk into memory. Finally, it defines concepts like buffers, polling, interrupts, handshaking, and utility software.
- The document provides an overview of basic Windows concepts, including the desktop, icons, buttons, shortcuts, taskbar, start button, system tray, recycle bin, internet explorer, and customization options.
- It explains what the desktop is, common icons like documents and computer, and elements like the taskbar, start button, and system tray.
- Shortcuts, the recycle bin, internet explorer, and customization features are also outlined.
The document discusses various computer input and output devices. It describes keyboards, mice, trackpads, trackballs, microphones, scanners, digital cameras, styluses, joysticks, and light pens as common input devices. Monitors, speakers, and printers are outlined as main output devices, with CRT and flat panel displays discussed for monitors. Impact and non-impact printers are also summarized.
This document discusses various input devices used for computer graphics workstations, including keyboards, mice, trackballs, spaceballs, joysticks, digitizers, image scanners, touch panels, light pens, and voice systems. These input devices allow users to input data, position screen cursors, select coordinates, and initiate graphics operations through mechanisms like buttons, wheels, sensors that detect motion and pressure, and voice recognition. Common input devices include mice, keyboards, graphics tablets, and touchscreens, while others like data gloves and spaceballs provide additional degrees of freedom for spatial input and manipulation in areas like virtual reality and 3D modeling.
Input and output devices allow interaction between users and computers. Input devices receive data for processing while output devices display or print the processed data. Common input devices include keyboards, mice, scanners, microphones, and webcams. Keyboards allow text input while pointing devices like mice allow navigation. Scanners digitize physical documents and images. Microphones and webcams capture audio and video.
The document discusses different types of user interfaces:
- Command line interfaces require users to type specific commands but need less system resources. They can be faster but require learning many commands.
- Menu driven interfaces present options through menus without requiring memorization of commands. However, they may be slower with too many nested menus.
- Graphical user interfaces (GUIs) use visual elements like windows, icons and pointers, making them very easy for beginners. GUIs are now the most common but require more system resources than other interfaces.
- The goal of any interface is to make a program easy to use through intuitive design, consistency, clear options and feedback.
Flatbed scanners are the most common and versatile scanner type. They scan documents placed on a glass surface using a light sensor and light source that sweep across the stationary document. Sheet feed scanners maximize throughput by moving documents past a stationary light source and sensor, while drum scanners provide the highest quality scans but are slower and more expensive. Microfilm and slide scanners are specialized for scanning film and photos. Digital cameras combine scanning and camera optics for a versatile scanning tool.
This document discusses various input and output devices used with computers. It describes common input devices like the mouse, keyboard, joystick, scanner, and barcode reader which are used to enter data and instructions into a computer. It then explains key output devices such as computer monitors, printers in different types like dot matrix, inkjet and laser, plotters which produce drawings, and microfilm/microfiche which store large amounts of data on film.
The document provides an overview of the typical configuration of a computer system. It describes the basic components of a computer including the input unit, central processing unit (CPU), memory unit, and output unit. The CPU consists of a control unit and arithmetic logic unit (ALU). The document then focuses on the motherboard, which contains the CPU, memory, expansion slots, and other electronic components. It discusses the characteristics, types, and components of motherboards such as the processor, BIOS, slots, disk controllers, ports, and power supply.
Introduction to Basic Computer Concepts PresentationAna Tan
The document discusses the history and evolution of computers from early calculating aids like the abacus to modern computers. It describes inventions like the Pascaline, the first mechanical calculator, the Difference Engine, an early mechanical computer, and the ENIAC, one of the first general-purpose electronic computers. It then discusses the development of personal computers starting in the 1970s and the introduction of devices like the Apple I, IBM PC, and early netbooks.
Microsoft Word is a word processing program that allows users to create documents by typing text and formatting it. Word is part of the Microsoft Office suite and is commonly used to create documents, save them, print them, and share them electronically. The document provides instructions on how to open and work with a basic Word document, including how to insert text, pictures, tables, and headers/footers and how to format text using fonts, alignment, line spacing, and other tools. It also describes how to check spelling and grammar, undo/redo actions, and close a Word document.
The document summarizes various types of computer system hardware including input, output, and storage devices. It describes keyboards and mice as common input devices used to enter text and navigate graphical user interfaces. Monitors and printers are mentioned as typical output devices to display and print information. Storage devices discussed include removable media, hard drives, and solid state drives used to permanently store electronic data.
These Notes from the class of BS EDUCATION 1st Semester (Spring) Session 2023-2027 Teacher :Ch Naveed Afzal
semester started in march 2023 and end in july 2023
peripheral device, also known as peripheral, computer peripheral, input-output device, or input/output device, any of various devices (including sensors) used to enter information and instructions into a computer for storage or processing and to deliver the processed data to a human operator or, in some cases, a machine controlled by the computer. Such devices make up the peripheral equipment of modern digital computer systems.
Peripherals are commonly divided into three kinds: input devices, output devices, and storage devices (which partake of the characteristics of the first two). An input device converts incoming data and instructions into a pattern of electrical signals in binary code that are comprehensible to a digital computer. An output device reverses the process, translating the digitized signals into a form intelligible to the user. At one time punched-card and paper-tape readers were extensively used for inputting, but these have now been supplanted by more efficient devices.
A peripheral device is defined as a computer device, such as a keyboard or printer, that is not part of the essential computer (i.e., the memory and microprocessor). These auxiliary devices are intended to be connected to the computer and used.
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Input and output devices allow a computer to communicate with the outside world. Input devices, like keyboards, mice, and cameras bring information into the computer, while output devices, like monitors, printers, speakers, and plotters send information out of the computer. Some input devices require physical operation, like keyboards and mice, while others are automatic sensors, such as barcode readers. Common output devices include monitors to display information visually and printers to produce hard copies.
Application software refers to programs that fulfill specific user needs and tasks, such as office suites, web browsers, and media players. Common examples include spreadsheets like Excel for calculations, presentation software like PowerPoint, and graphic editors. Application software provides tools to help users perform tasks like managing budgets, creating slideshows, and photo editing. It interfaces with the operating system and hardware to provide functionality to end users.
The document discusses various input and output devices used in computers. It describes common input devices like the mouse, keyboard, trackball, joystick, light pen, microphone, digital camera, and scanner. It provides details on the different parts and functions of a keyboard. It also explains various output devices such as monitors, printers, plotters, disk drives, CD writers, and distinguishes between soft and hard copies.
Input Devices-Keyboard, Mouse, Trackball, Joystick, Scanner and Types, Barcode Reader, Voice Recognition, Web Camera, Optical character recognition, Optical Mark recognition, Monitor, Printer and Types, Plotter
Input and Output devices provides a brief and comprehensive overview of computer system basics. It is beneficial for novices and may provide more clear picture to advance users about computer fundamentals
The document discusses input and output devices used with computers. It defines input devices as those used to provide data and control signals to computers, like keyboards, mice, microphones, and scanners. Output devices are used to display or present the results of processed data, such as monitors, printers, speakers, and projectors. The document provides examples of various types of input devices including keyboards, mice, microphones, digital cameras, and barcode readers. It also provides examples of output devices such as monitors, printers, speakers, headsets, and plotters. Some devices like CD drives and USB drives can act as both input and output devices by allowing data to be both input and accessed from storage.
The document discusses various input and output devices used with CAD/CAM systems. It describes keyboards, mice, joysticks, light pens, scanners, touch screens, microphones, and trackballs as common input devices used to enter data and instructions into the computer. Output devices mentioned include monitors for displaying processed information, printers for printed hard copies, speakers for playing audio, and plotters for high-quality printed outputs like drawings.
Peripheral devices are hardware components that can be connected to a computer to allow input or output of data. Some common input devices described include keyboards, mice, scanners, digital cameras, and touch screens. Output devices receive processed data from the computer and display it, such as monitors which form images from pixels.
The document discusses various types of computer input and output devices. It describes keyboards, mice, scanners, joysticks, light pens, and other input devices used to communicate data and instructions to computers. Output devices discussed include monitors, printers, speakers, and projectors used to display or present the processed data to users. The key functions and characteristics of different input and output hardware are provided.
This document discusses various types of computer input and output devices. It describes keyboards, mice, scanners, joysticks, light pens, optical mark readers, microphones, digital cameras, digital camcorders, bar code readers, and MIDI devices as common input devices used to enter data into a computer. It also outlines monitors, printers, speakers, plotters, and projectors as standard output devices that display processed computer data on screens or print it onto paper.
The document discusses the basic components and functions of a computer system. It describes various input devices like keyboards, mice, and scanners that allow users to enter data. It explains how processors execute programs and enable multitasking through time-sharing. A variety of output devices are mentioned, including monitors, printers, and speakers. Common storage devices that hold data like hard drives, CDs, DVDs, and USB flash drives are also outlined.
This document provides an overview of computers and their components. It defines a computer as an electronic machine made up of hardware and software. The main components are the central processing unit (CPU), memory, storage, input devices, and output devices. Common input devices include keyboards, mice, and scanners, while common output devices include monitors, printers, and speakers. Memory is either primary memory (RAM) or secondary storage like hard disks. Factors that influence computer performance include CPU speed, memory capacity, hard disk speed, and bus speed.
This document provides information about various computer input and output devices. It discusses common input devices like the keyboard, mouse, scanner, and microphone. It describes the purpose and components of keyboards like typing keys, numeric keypads, function keys, and control keys. The document also covers output devices such as monitors, printers, and speakers. Specific types of printers are defined, including drum printers, line printers, dot matrix printers, and laser printers.
Basic of R Programming Language,
Introduction, How to run R, R Sessions and Functions, Basic Math, Variables, Data Types, Vectors, Conclusion, Advanced Data Structures, Data Frames, Lists, Matrices, Arrays, Classes
Basic of R Programming Language
R is a programming language and environment commonly used in statistical computing, data analytics and scientific research.
Number System, Conversion, Decimal to Binary, Decimal to Octal, Decimal to Binary, Decimal to HexaDecimal, Binary to Decimal, Octal to Decimal, Hexadecimal to Decimal, Binary to Octal, Binary to Hexadecimal, Octal to Hexadecimal, BCD, Binary Addition
HARDWARE ARCHITECTURE OF PARALLEL COMPUTING, THE CLOUD COMPUTING REFERENCE MODEL, BUILDING CLOUD COMPUTING ENVIRONMENT, INFRASTRUCTURE AND SYSTEM DEVELOPMENT, HARDWARE ARCHITECTURES FOR PARALLEL PROCESSING APPROACHES TO
PARALLEL PROGRAMMING,
1. Single-Instruction, Single-Data (SISD) Systems
2. Single-Instruction, Multiple-Data (SIMD) Systems
3. Multiple-Instruction, Single-Data (MISD) Systems
4. Multiple-Instruction, Multiple-Data (MIMD) Systems
Data Link layer design issues, Error Detection and Correction, Elementary Data Link protocols: Unrestricted simplex protocol, Simplex stop-and-wait protocol, Simplex protocol for a noisy channel; Sliding Window protocols: One-bit sliding window protocol, Protocol using Go back N, Example.
Data link protocol: Higher Level Data Link Control, Data link layer in the internet. Internetworking and Advanced Internetworking Switching and Bridging, Basic Internetworking (IP), Routing, The Global Internet, Routing among Mobile Devices
Sensors in Different Application Area Topics Covered: Occupancy and Motion Detectors; Position, Displacement, and Level; Velocity and Acceleration; Force, Strain, and Tactile Sensors; Pressure Sensors, Temperature Sensors
Topics: Interface Electronic Circuits, Input Characteristics of Interface Circuits, Amplifiers, Excitation Circuits, Analog to Digital Converters, Direct Digitization and Processing, Bridge Circuits, Data Transmission, Batteries for Low Power Sensors
Sensors fundamentals and characteristics, physical principle of sensingSweta Kumari Barnwal
Sensors, Signals and Systems; Sensor Classification; Units of Measurements; Sensor Characteristics; Electric Charges, Fields and Potentials Capacitance; Magnetism Induction, Resistance; Piezoelectric Effect, Hall Effect, Temperature and Thermal Properties of Material, Heat Transfer, Light, Dynamic Models of Sensor Elements
Logic gates are the basic building blocks of digital systems. The main logic gates are AND, OR, NOT, NAND, and NOR gates. Each gate has 1 or more inputs and 1 output, with the output determined by the inputs based on the gate's logic. NAND and NOR gates are called universal gates because combinations of them can be used to perform the logic of all the basic gates.
Central Processing Unit (CPU) Memory, Communication between Various Units of a Computer System, The Instruction Format, Instruction Set, Processor Speed, Multiprocessor Systems, Multicomputer System
This document provides descriptions of key features and tools in the Windows operating system, including the Control Panel, Desktop, Device Manager, Disk Cleanup, Event Viewer, File Explorer, Internet browsers, Microsoft Paint, Notepad, Notification Area, Power User Tasks Menu, Registry Editor, Settings, Start menu, System Information, Taskbar, Task Manager, Windows search box, and Cortana. It explains what each feature is used for and how to access it in Windows.
OPERATING SYSTEM AND SERVICES
TOPICS
1 Dos – History, Files and Directories
2 Internal and External Commands
3 Batch Files
4 Types of O.S.
Assignment:
• Draw the block diagram for computers and explain the various the components in few words, viz. Input, Storage, Processing, Output and Control
TOPICS
1 Introduction, Characteristics of Computers, Block Diagram of Computer
2 Types of Computers and Features
3 Types of Programming Languages
4 Data Organization, Types of Memory (Primary and Secondary)
5 I/O Devices, Number System
Standard Client / Server Protocols: Worldwide- web and HTTP,FTP, Electronic mail, Telnet, Secured Shell, Domain name system. Application layer: DNS: Name space – domain name space – distribution of name space Electronic mail Architecture – FILE transfer: FTP WWW and HTTP: Architecture – web documents – HTTP Network Security: Introduction - definitions – two categories - symmetric key cryptography – traditional ciphers – asymmetric key cryptography
Introduction to the Network Layer: Network layer services, packet switching, network layer performance, IPv4 addressing, forwarding of IP packets, Internet Protocol, ICMPv4, Mobile IP Unicast Routing: Introduction, routing algorithms, unicast routing protocols. Next generation IP: IPv6 addressing, IPv6 protocol, ICMPv6 protocol, transition from IPv4 to IPv6. Introduction to the Transport Layer: Introduction, Transport layer protocols (Simple protocol, Stop-and-wait protocol, Go-Back-n protocol, Selective repeat protocol, Bidirectional protocols), Transport layer services, User datagram protocol, Transmission control protocol
This document discusses security considerations for cloud computing. It covers security challenges like privacy, portability, interoperability, reliability and availability. It also discusses security planning, boundaries based on infrastructure as a service (IaaS), platform as a service (PaaS) and software as a service (SaaS) models. Additional topics include data security, software as a service security, security monitoring, and security architecture design.
Ethical Hacking Concepts and Scopes, Threats and Attack Vectors, Information Assurance, Threat Modelling
Enterprise Information Security Architecture, Vulnerability
Assessment and Penetration Testing
Types of Social Engineering, Insider Attack, Preventing Insider
Threats, Social Engineering Targets and Defence Strategies
This document discusses different types of cloud services including Software as a Service (SaaS), Platform as a Service (PaaS), Infrastructure as a Service (IaaS), Database as a Service (DaaS), and Monitoring as a Service. It describes the key characteristics and advantages of each service type. Some potential issues and disadvantages are also outlined such as security concerns, vendor lock-in, and network dependence. Examples of major cloud service providers are provided for each service layer including Google, Amazon, Microsoft, and Salesforce.
VIRTUALIZATION: Basics of Virtualization, Types of Virtualizations, Implementation Levels of Virtualization, Virtualization Structures, Tools and Mechanisms, Virtualization of CPU, Memory, I/O Devices, Virtual Clusters and Resource management, Virtualization for Data-center Automation, Introduction to MapReduce, GFS, HDFS, Hadoop, Framework.)
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Answers about how you can do more with Walmart!"
it describes the bony anatomy including the femoral head , acetabulum, labrum . also discusses the capsule , ligaments . muscle that act on the hip joint and the range of motion are outlined. factors affecting hip joint stability and weight transmission through the joint are summarized.
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An import error occurs when a program fails to import a module or library, disrupting its execution. In languages like Python, this issue arises when the specified module cannot be found or accessed, hindering the program's functionality. Resolving import errors is crucial for maintaining smooth software operation and uninterrupted development processes.
A workshop hosted by the South African Journal of Science aimed at postgraduate students and early career researchers with little or no experience in writing and publishing journal articles.
Strategies for Effective Upskilling is a presentation by Chinwendu Peace in a Your Skill Boost Masterclass organisation by the Excellence Foundation for South Sudan on 08th and 09th June 2024 from 1 PM to 3 PM on each day.
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আমাদের সবার জন্য খুব খুব গুরুত্বপূর্ণ একটি বই ..বিসিএস, ব্যাংক, ইউনিভার্সিটি ভর্তি ও যে কোন প্রতিযোগিতা মূলক পরীক্ষার জন্য এর খুব ইম্পরট্যান্ট একটি বিষয় ...তাছাড়া বাংলাদেশের সাম্প্রতিক যে কোন ডাটা বা তথ্য এই বইতে পাবেন ...
তাই একজন নাগরিক হিসাবে এই তথ্য গুলো আপনার জানা প্রয়োজন ...।
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This presentation was provided by Steph Pollock of The American Psychological Association’s Journals Program, and Damita Snow, of The American Society of Civil Engineers (ASCE), for the initial session of NISO's 2024 Training Series "DEIA in the Scholarly Landscape." Session One: 'Setting Expectations: a DEIA Primer,' was held June 6, 2024.
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A review of the growth of the Israel Genealogy Research Association Database Collection for the last 12 months. Our collection is now passed the 3 million mark and still growing. See which archives have contributed the most. See the different types of records we have, and which years have had records added. You can also see what we have for the future.
Reimagining Your Library Space: How to Increase the Vibes in Your Library No ...Diana Rendina
Librarians are leading the way in creating future-ready citizens – now we need to update our spaces to match. In this session, attendees will get inspiration for transforming their library spaces. You’ll learn how to survey students and patrons, create a focus group, and use design thinking to brainstorm ideas for your space. We’ll discuss budget friendly ways to change your space as well as how to find funding. No matter where you’re at, you’ll find ideas for reimagining your space in this session.
Chapter wise All Notes of First year Basic Civil Engineering.pptxDenish Jangid
Chapter wise All Notes of First year Basic Civil Engineering
Syllabus
Chapter-1
Introduction to objective, scope and outcome the subject
Chapter 2
Introduction: Scope and Specialization of Civil Engineering, Role of civil Engineer in Society, Impact of infrastructural development on economy of country.
Chapter 3
Surveying: Object Principles & Types of Surveying; Site Plans, Plans & Maps; Scales & Unit of different Measurements.
Linear Measurements: Instruments used. Linear Measurement by Tape, Ranging out Survey Lines and overcoming Obstructions; Measurements on sloping ground; Tape corrections, conventional symbols. Angular Measurements: Instruments used; Introduction to Compass Surveying, Bearings and Longitude & Latitude of a Line, Introduction to total station.
Levelling: Instrument used Object of levelling, Methods of levelling in brief, and Contour maps.
Chapter 4
Buildings: Selection of site for Buildings, Layout of Building Plan, Types of buildings, Plinth area, carpet area, floor space index, Introduction to building byelaws, concept of sun light & ventilation. Components of Buildings & their functions, Basic concept of R.C.C., Introduction to types of foundation
Chapter 5
Transportation: Introduction to Transportation Engineering; Traffic and Road Safety: Types and Characteristics of Various Modes of Transportation; Various Road Traffic Signs, Causes of Accidents and Road Safety Measures.
Chapter 6
Environmental Engineering: Environmental Pollution, Environmental Acts and Regulations, Functional Concepts of Ecology, Basics of Species, Biodiversity, Ecosystem, Hydrological Cycle; Chemical Cycles: Carbon, Nitrogen & Phosphorus; Energy Flow in Ecosystems.
Water Pollution: Water Quality standards, Introduction to Treatment & Disposal of Waste Water. Reuse and Saving of Water, Rain Water Harvesting. Solid Waste Management: Classification of Solid Waste, Collection, Transportation and Disposal of Solid. Recycling of Solid Waste: Energy Recovery, Sanitary Landfill, On-Site Sanitation. Air & Noise Pollution: Primary and Secondary air pollutants, Harmful effects of Air Pollution, Control of Air Pollution. . Noise Pollution Harmful Effects of noise pollution, control of noise pollution, Global warming & Climate Change, Ozone depletion, Greenhouse effect
Text Books:
1. Palancharmy, Basic Civil Engineering, McGraw Hill publishers.
2. Satheesh Gopi, Basic Civil Engineering, Pearson Publishers.
3. Ketki Rangwala Dalal, Essentials of Civil Engineering, Charotar Publishing House.
4. BCP, Surveying volume 1
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Odoo 17 CRM allows us to track why we lose sales opportunities with "Lost Reasons." This helps analyze our sales process and identify areas for improvement. Here's how to configure lost reasons in Odoo 17 CRM
How to Manage Your Lost Opportunities in Odoo 17 CRM
Cs input and output devices
1. Introduction to Computer System
Input Devices & Output Devices
Prepared By
S.K. Barnwal
Assistant Professor
Arka Jain University
Research Scholar (NIT, Jamshedpur)
2. Objectives
After studying this unit you should be able to understand:
the basic concepts of input/output devices;
functions of input/output devices;
types of input/output devices;
types of monitors, printers, scanners and graphics tablet
newer technologies in computer hardware.
3. Inputs are data or signals received by the computer system. An Input
unit takes the input and converts it into binary form, so that it can be
easily understand by the system.
If computer is not communicating with the external world then it will
be of no use. Thus, a computer must have a system to receive
information from the outside world and must be able to communicate
results to the external world. For this, a computer consists of
input/output devices. Input and output devices can also be written as
I/O devices.
I/O devices of a computer system are the devices that connect users to
computer. Input devices let us to transfer data and user command into
the computer system. Input devices are used to interact with the
computer system. For example, we can type in data by using a
keyboard, we can give command/ instruction using voice recognition
system, or we can input data in picture form by using a scanner in
computer system etc.
4. On the other hand, output devices display the result of input data or
signals after processing of our given input instructions or command.
Examples of these could be our computer’s monitor, which displays all
the programs which are running on the computer, as well as the printer,
which will print out a hard copy of the information which is saved in
our system.
Input and output devices allow the computer system to interact with the
outside world by moving data into and out of the computer system.
5. I/O Devices
Examples of some input devices
are:
• Keyboard
• Mouse
• Joystick
• Microphone
• Bar code reader
• Graphics tablet
• Pen drive
• CD/DVD
• Digital Camera
Examples of some output devices
are:
• Monitor
• Printer
• Plotter
• Speaker
6. Input Devices
Keyboard:
It is the most common i/p device used for entering data and information
into the computational system. This is the standard input device
attached to all computers. The keyboard is a primary device for
inputting text by pressing a set of keys. All the keys are neatly mounted
in a keyboard connected to the computer system.
Standard keyboard used with most computer system, have enough keys
to make them useful for any type of application. The layout of
keyboard is just like the traditional typewriter of the type QWERT,
contains a total of 101 to 104 keys some extra command keys and
function keys.
In general, a computer keyboard has following keys :
1. Alphanumeric Keys: It includes letters and numbers.
2. Punctuation Keys: These include comma, period, semicolon etc.
3. Special Keys: These can be function keys, control keys, arrow keys and
Caps lock keys etc.
7. Input Devices
Keyboards generally utilize integrated circuits to perform essential
functions, such as determining the combination of 1s and 0s, or binary
code, to send to the CPU, corresponding to each key pressed by the
user so that system can understand. The wireless function is achieved
by infrared signals or by radio frequency.
In general all the modern keyboards of computer are classified as:
(a) Original PC keyboard having 84 keys;
(b) Advance Technology (AT) Keyboard having 101-104 keys;
(c) Multimedia Keyboard having 120 – 140 keys.
8. Input Devices
Pointing Devices:
1. Mouse: It is a pointing device which is used to input data and
information into the computer system by pointing on it. It is a
handy device which can be moved on a smooth surface to cause the
movement of a cursor on the screen. Physically, it contains a small
case, held under one of the user’s hands with one or more buttons.
For GUI-based systems a mouse is an essential pointing-device.
The cursor of the mouse moves in the same direction in which the
mouse ball rolls.
Its name is derived from its shape that looks like a mouse, with its
connecting wire that one can imagine to be the mouse’s tail. A Mouse
rolls on a small ball and has two or three buttons on the top. When you
roll the mouse across a flat surface on the screen, sensors sense the
mouse in the direction of mouse movement. The cursor moves very fast
with a mouse giving you more freedom to work in any direction. It is
easier and faster to move through a mouse compared to movement
using keys.
9. Input Devices
Types of Mouse:
a) Mechanical, b) Optical, c) Cord-Less,
2. Trackball: It is also a pointing device having a movable ball
mounted on a stationary device, can be rotated manually by using
fingers. In a trackball, the ball is placed on the top along with buttons
which can be rolled with the fingers. These are used in playing video
games.
Mouse and mobile phones
are equipped with trackballs
to navigate addresses as well
as play games.
10. Input Devices
3. Joystick: It is a pointing device used as a remote control device for a
computer playing video games to indicate the position. It has a stick
that pivots on a base and is used for controlling the action in video
games. The User moves a spherical ball with the help of a stick in the
joystick as opposed to the trackball where fingers are used for moving
the ball. Joysticks are also used for controlling machines such as
cranes, trucks, underwater unmanned vehicles, flight simulators,
industrial robots etc.
11. Input Devices
Speech Recognition Device:
Speech recognition devices were introduced in the early 1970s. Mostly,
such systems contain a database of stored voice patterns. This database
of voice patterns is generally stored in a recognition unit or in
secondary storage. A microphone, attached to the keyboard or
recognition unit, records the spoken word patterns. A built-in
microprocessor then compares, word by word, these patterns with the
stored patterns and transmits the results of the comparisons to a
computer for processing. A sentence must be spoken as a series of
disjoined words and numbers spoken as a series of digits and not as a
single number. Speech recognition devices are generally used in
situations where access to a switch or control is not possible or where a
user's hands are otherwise occupied.
12. Input Device
Digital Camera:
It is an electronic device takes still photographs, video or both, digitally
by recording images via an electronic image sensor. Digital cameras
can do things which film cameras can’t, for example displaying images
on screen immediately after they are recorded. It looks like ordinary
cameras but have sufficient memory in the form of chips to store
thousands of images, rather than using photographic films. Images
recorded on a digital camera can be cropped for editing, deleted and
various types of special effects can be created by using Photoshop
software.
13. Input Devices
Scanners:
It is an input device used to feed data in the form of pictures into the
computer system. Optical scanners scan images, printed text,
handwriting, or an object, and converts it to a digital image. Examples
of scanners are a desktop or flatbed scanner. In scanners the document
is placed on a glass window for scanning. Mechanically driven
scanners that move the document are typically used for large-formatted
volume of documents. One more type of scanner is a planetary scanner.
This scanner takes photographs of books and documents. Three
dimensional scanners are used for producing three-dimensional models
of objects.
14. Output Devices
There are three types of output devices based on the type of output
produced by the computer in the following form:
1. soft copy: The output on the screen is called a soft copy. Ex; Visual Display
Unit (CRT, LCD, TFT, LED) Screen, Flat Monitor, Projector etc.
2. hard copy: Hard copies are tangible computer outputs. Ex; printer and plotter
3. sound output: The device which gives a sound output. Ex; Speaker
Monitors:
One of the most important output devices in computer system is its
screen commonly called monitor. It is an output device and displays all
the programs and applications which are running on the computer
system. A Monitor is the visual display unit of the computer system. It
displays images generated from the video output. It displays images
without keeping a permanent record.
15. Output Devices
Monitors:
A Graphic display is made up of a series of dots called ‘pixels’ (picture
elements) whose pattern produces images in computer system. Each
dot on the screen is defined as a separate unit which can be addressed
separately. Since each dot on the screen can be controlled separately it
gives greater flexibility in drawing pictures. The Number of dots per
inch (dpi) is called the resolution of the screen and represents the
quality of the computer system.
There are various kind of monitors are available.
Monitors are on the basis of technology
CRT (Cathode Ray Tube) Monitor
LCD (Liquid Crystal Display) Monitor
TFT LCD (Thin Film Transistor Liquid Crystal Display)
LED (Light Emitting Diode)
16. Output Devices
Monitors are on the basis of signal
Analog Monitor
Digital Monitor
Monitors are on the basis of size
14 inch
17 inch
32 inch
40 inch
Monitors are on the basis of resolution
1024 by 768 pixels
1280 by 1024 pixels
1600 by 1200 pixels
17. Output Devices
Projector:
This is a type of video projector used for displaying videos, images, or
computer data on a large screen or any other flat surface. Several
people in a classroom can view the output on a wide screen at the same
time. It is a modern equivalent of the slide projector or overhead
projector. A beam of high-intensity light travels through thousands of
shifting pixels in a LCD display. This beam of light then passes through
a lens which projects and focuses the image on the surface. . It receives
video signals and projects the corresponding image on a projection
screen. It uses a lens system for this projection.
18. Output Devices
Computer Output Microfilm (COM):
It is a process for copying data from storage media on a computer onto
microfilm. COM can be produced as microfiche or as 16mm-roll
microfilm or we can say that it is a technology enabling the output of
computers be recorded directly on microfilm rather than on paper. It is
a blending of the computer, microphotography, and electronics. This
process is faster than printing on paper, and the information produced
is more accessible and occupies less space than paper reports.
A COM system usually consists of a recorder/developer and a reader.
The recorder/developer equipment may be in a single unit or each unit
may be separate. The recorder reads computer magnetic tape, reduces
the physical size of the data, and transforms it onto film, which is then
developed. The reader, the main vehicle for retrieving information on
microfilm, magnifies the reduced data on the film so a report user can
read it.
19. Output Devices
Printer:
Printers are used for producing output on paper. There are a large
variety of printers and printing devices which can be classified
according to the print quality and printing speed.
Plotters:
A Plotter is a device that draws pictures on a page as output, after
receiving a print command from the computer. It is also called a graph
plotter. In plotters pens are used to draw lines on the paper, which is
placed in the plotter.
20. Output Devices
Speakers:
Computer speakers, or multimedia speakers, are external speakers,
commonly equipped with a low-power internal amplifier which
produces sound as output. External speakers are connected with a
computer by using a plug and socket.
Microphone:
It is an acoustic-to-electric transducer or sensor used to convert sound
signals into electrical signals. This input device was originally invented
by Emile Berliner in 1877, and allows you to record voices or sounds
and place them onto computers, generally as a wave file.
21. Output Devices
Terminals:
A computer terminal is an electronic or electromechanical hardware
device that can be used for entering data into, and transcribing data
from, a computer or a computing system. Ex; Teletype
Early terminals were inexpensive devices but very slow compared to
punched cards or paper tape for input, but as the technology improved
and video displays were introduced, terminals pushed these older forms
of interaction from the industry. A related development was
timesharing systems, which evolved in parallel and made up for any
inefficiencies of the user's typing ability with the ability to support
multiple users on the same machine, each at their own
terminal/terminals.