PCS - FIT ITE Chapter 1

Chapter 1: Introduction to the Personal Computer IT Essentials: PC Hardware and Software v4.0

Chapter 1 Objectives ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Chapter 1 Worksheets ,[object Object],[object Object]

1.1 Information Technology (IT) ,[object Object],[object Object],[object Object]

IT Technician ,[object Object],[object Object]

Education and Certification ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

CompTIA A+ Certification ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Suggested Related Certifications ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

1.2 Basic Personal Computer System ,[object Object],[object Object],[object Object],[object Object],[object Object]

Computer Cases and Power Supplies ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Computer Cases ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Case Selection Factor Rationale Model Type Two main case models (one for desktop PCs and the other for tower PCs). The type of motherboard determines the type of case. Size and shape must match exactly. Size If a computer has many components, it will need more room for airflow to keep the system cool. Available Space Desktop cases allow space conservation in tight areas because the monitor can be placed on top of the unit. The case design may limit the number and size of the components that can be added. Power Supply Match the power rating and connection type of the power supply to the type of motherboard chosen. Appearance There are many case designs to choose from if it is necessary to have a case that is attractive. Status Display LED indicators that are mounted on the front of the case can tell you if the system is receiving power, when the hard drive is being used, and when the computer is on standby or sleeping. Vents All cases have a vent on the power supply. Some cases have more vents to dissipate an unusual amount of heat.

Power Supplies ,[object Object],[object Object],[object Object],[object Object]

Power Supply Connectors ,[object Object],[object Object],[object Object],[object Object],[object Object],Molex Berg ATX12V ATX 20-pin ATX 20 and 24-pin AT (P8, P9) ATXv12 24-pin

Power Supply Connectors ATX 20-pin to 24-pin connector ATX 20-pin ATX 20 + 4 connector AT, P8, P9, black to black ATX 24-pin connector 4-pin 12v

Power Supply Connectors 12v power for PCI express SATA power connector Berg connector Molex connector

Four Basic Units of Electricity ,[object Object],[object Object],[object Object],[object Object]

Power Supply ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],AT – P8/P9 connectors, 12 pins ATX – P1 connector, 20 pins

Power Supplies ,[object Object],[object Object],[object Object]

Motherboards ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Motherboard Form Factors ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Power Supply Hard (C) Drive Floppy (A) Drive CD (D) Drive Inside the Computer

DIMM memory slots ISA slot joystick connector IDE connectors PCI slots hard drive CD Drive power connector Floppy connector printer connector USB ports processor (ZIF) socket chipset AMR slot AGP slot Mouse and keyboard connector

system RAM IDE connectors hard drive CD Drive Floppy connector System board IC Expansion slots ISA slot PCI slots AMR slot AGP slot PS/2 or Mini-Din keyboard mouse USB Com 1 Com 2 parallel port/PRT 1 game port speaker line-in mic power connector

CPU Types and Socket Specifications Most CPUs—PGA with ZIF

CPU Types and Socket Specifications

Central Processing Unit (CPU) ,[object Object],[object Object],[object Object]

Central Processing Unit (CPU) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Cooling Systems ,[object Object],[object Object],[object Object],[object Object],Case Fan CPU Fan

Read-Only Memory (ROM) ,[object Object],ROM Types ROM Types Description ROM Read-only memory chips Information is written to a ROM chip when it is manufactured. A ROM chip cannot be erased or re-written and can become obsolete. PROM Programmable read-only memory Information is written to a PROM chip after it is manufactured. A PROM chip cannot be erased or re-written. EPROM Erasable programmable read-only memory Information is written to an EPROM chip after it is manufactured. An EPROM chip can be erased with exposure to UV light. Special equipment is required. EEPROM Electrically erasable programmable read-only memory Information is written to an EEPROM chip after it is manufactured. EEPROM chips are also called Flash ROMs. An EEPROM chip can be erased and re-written without having to remove the chip from the computer.

Random-Access Memory (RAM) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Memory Modules ,[object Object],[object Object],[object Object],[object Object]

RAM – Random Access Memory (SIMMS / DIMMS / RIMMS)

RAM – Random Access Memory (SIMMS / DIMMS Installation)

Cache and Error Checking ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Adapter Cards ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Hard Drives and Floppy Drives ,[object Object],[object Object],[object Object],[object Object]

Optical Drives and Flash Drives ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

1.5 Ports USB DB9 COM Ports Firewire DB25--parallel SCSI Mini-DIN Game Port-DB15

RJ-45 USB 1/8” Stereo Phone Jacks DB-15 – Serial Port DB-9 – Com 1 and Com 2 DB-15 – Video Port PS/2 - Mini Din – Keyboard and Mouse

Internal Cables ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],NOTE : A colored stripe on a cable identifies Pin 1 on the cable. When installing a data cable, always ensure that Pin 1 on the cable aligns with Pin 1 on the drive or drive controller. Some cables may be keyed and therefore they can only be connected one way to the drive and drive controller.

Serial Ports and Cables ,[object Object],[object Object],[object Object],[object Object]

USB Ports and Cables ,[object Object],[object Object],[object Object],[object Object],[object Object],USB 1.1 allowed transmission rates of up to 12 Mbps in full-speed mode and 1.5 Mbps in low speed mode. USB 2.0 allows transmission speeds up to 480 Mbps. USB devices can only transfer data up to the maximum speed allowed by the specific port.

FireWire Ports and Cables ,[object Object],[object Object],[object Object],[object Object],[object Object]

Parallel Ports and Cables ,[object Object],[object Object],[object Object]

SCSI Ports and Cables ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

SCSI Controllers Small Computer System Interface ,[object Object],[object Object],[object Object],[object Object]

Network Ports and Cables ,[object Object],[object Object],[object Object],[object Object],[object Object]

PS/2 Ports and Audio Ports ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Video Ports ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

1.6 Input Devices ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Fingerprint scanner Digital camera

Monitors and Projectors ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

1.7 Other Output Devices ,[object Object],[object Object],[object Object],[object Object],Speakers Headphones

1.8 System Resources ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Interrupt Requests (IRQs) ,[object Object],[object Object],[object Object],[object Object]

Input/Output (I/O) Port Addresses ,[object Object],[object Object],[object Object],[object Object],[object Object]

I /O Address 32-32-32 - FF-EE-77 -88-88-88 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Direct Memory Access (DMA) ,[object Object],[object Object],[object Object],[object Object]

Chapter 1 Summary ,[object Object],[object Object]

Additional Resources ,[object Object],[object Object],[object Object],[object Object],[object Object]

Let’s see what you have learned . . . ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

PCS - FIT ITE Chapter 1

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