1. Zealous Data
(Group 1)
Power point Presentation

3. PARTS AND
FUNCTION
OF
COMPUTER

4. Computer

5. Computer
• A Computer is a system of information
processing components that perform input,
processing, output, storage, and control
functions . Thus, a computer system consists
of input and output devices, a central
processing unit (CPU), primary and secondary
storage devices, and other peripheral devices.

6. A computer is a system of hardware devices organized
according to the following System Functions:
Input. The input devices of a computer system include:
1. Keyboards
2. Mouse
2. Touch Screens
3. Light Pens
4. Scanners
5. Computer Microphone

8. Input
Device

9. is any peripheral (piece of computer hardware
equipment) used to provide data and control
signals to an information processing system such
as computer or other information appliance.

10. They convert data into electronic machine-
readable form for direct entry or though
telecommunications links into computer system.

12. Examples
Of Input Device

13. Keyboard
.

14. Keyboard
- is a typewriter-style device, which uses an
arrangement of buttons or keys, to act as
mechanical levers or electronic switches.
Following the decline of punch cards and paper
tape, interaction via teleprinter -style keyboards
became the main input device for computers.

15. Keyboard
- is a typewriter-style device, which uses an
arrangement of buttons or keys, to act as
mechanical levers or electronic switches.
Following the decline of punch cards and paper
tape, interaction via teleprinter -style keyboards
became the main input device for computers.

16. Keyboard
- is a typewriter-style device, which uses an
arrangement of buttons or keys, to act as
mechanical levers or electronic switches.
Following the decline of punch cards and paper
tape, interaction via teleprinter -style keyboards
became the main input device for computers.

17. Mouse

18. Mouse
- is a pointing device that detects two-
dimensional motion relative to a surface. This
motion is typically translated into the motion of
a pointer on a display, which allows for fine
control of a graphical user interface.

19. Mouse
- is a pointing device that detects two-
dimensional motion relative to a surface. This
motion is typically translated into the motion of
a pointer on a display, which allows for fine
control of a graphical user interface.

20. Touch Screen

21. Touch Screen
-is an electronic visual display that the user can
control through simple or multi-touch gestures by
touching the screen with a special stylus/pen and-
or one or more fingers. Some touchscreens use an
ordinary or specially coated gloves to work while
others use a special stylus/pen only. The user can
use the touchscreen to react to what is displayed
and to control how it is displayed (for example
by zooming the text size).

22. Touch Screen
-is an electronic visual display that the user can
control through simple or multi-touch gestures by
touching the screen with a special stylus/pen and-
or one or more fingers. Some touchscreens use an
ordinary or specially coated gloves to work while
others use a special stylus/pen only. The user can
use the touchscreen to react to what is displayed
and to control how it is displayed (for example
by zooming the text size).

23. Touch Screen
-is an electronic visual display that the user can
control through simple or multi-touch gestures by
touching the screen with a special stylus/pen and-
or one or more fingers. Some touchscreens use an
ordinary or specially coated gloves to work while
others use a special stylus/pen only. The user can
use the touchscreen to react to what is displayed
and to control how it is displayed (for example
by zooming the text size).

24. Touch Screen
-is an electronic visual display that the user can
control through simple or multi-touch gestures by
touching the screen with a special stylus/pen and-
or one or more fingers. Some touchscreens use an
ordinary or specially coated gloves to work while
others use a special stylus/pen only. The user can
use the touchscreen to react to what is displayed
and to control how it is displayed (for example
by zooming the text size).

25. Touch Screen
-is an electronic visual display that the user can
control through simple or multi-touch gestures by
touching the screen with a special stylus/pen and-
or one or more fingers. Some touchscreens use an
ordinary or specially coated gloves to work while
others use a special stylus/pen only. The user can
use the touchscreen to react to what is displayed
and to control how it is displayed (for example
by zooming the text size).

26. Light Pens

27. Light Pens
-is a computer input device in the form of a
light-sensitive wand used in conjunction with a
computer's CRT display. It allows the user to
point to displayed objects or draw on the screen
in a similar way to a touchscreen but with
greater positional accuracy.

28. Light Pens
-is a computer input device in the form of a
light-sensitive wand used in conjunction with a
computer's CRT display.It allows the user to
point to displayed objects or draw on the screen
in a similar way to a touchscreen but with
greater positional accuracy.

29. Scanners

30. Scanners
-A scanner is an input device that scans documents
such as photographs and pages of text. When a
document is scanned, it is converted into a digital
format. This creates an electronic version of the
document that can be viewed and edited on a
computer. Most scanners are flatbed devices, which
means they have a flat scanning surface. This is
ideal for photographs, magazines, and various
documents.

31. Scanners
-A scanner is an input device that scans documents
such as photographs and pages of text. When a
document is scanned, it is converted into a digital
format. This creates an electronic version of the
document that can be viewed and edited on a
computer. Most scanners are flatbed devices, which
means they have a flat scanning surface. This is
ideal for photographs, magazines, and various
documents.

32. Computer Microphone

33. Computer Microphone
-A device that converts sound waves into
analogous electrical waves. Usually called a
"mike," it contains a flexible diaphragm
composed of film or foil that vibrates as it makes
contact with the sound.

34. Computer Microphone
-A device that converts sound waves into
analogous electrical waves. Usually called a
"mike," it contains a flexible diaphragm
composed of film or foil that vibrates as it makes
contact with the sound.

35. That’s are the input devices
=)

37. Short
individual
QUIZ

39. It used to provide data and
control signals to
an information processing
system such as a computer or
other information appliance.

41. Input Device

43. It used during
WORLD WAR II

45. Teletypes
Machine

47. The First touch
Screen phone

49. IBM Simon
Personal
Communicator

51. Processing

53. -(CPU)or central processing unit is the main
processing component of a computer
system in (Microcomputers, the CPU is the
main microprocessor).
-CPU’s major arithmetic-logic unit is (ALU)
that performs the arithmetic and logic
functions required in computer processing.

54. Components of the CPU include:

55. Components of the CPU include:
1. Control Unit

56. Components of the CPU include:
1. Control Unit
2. Arithmetic-Logic Unit

57. Components of the CPU include:
1. Control Unit
2. Arithmetic-Logic Unit
3. Primary Storage Unit

58. Control Unit

59. Control Unit
is a component of a computer's central
processing unit (CPU) which directs
operation of the processor. It controls
communication and co-ordination between
input/output devices. It reads and
interprets instructions and determines the
sequence for processing the data.

60. Arithmetic logic unit (ALU)

61. Arithmetic logic unit (ALU)
is a digital circuit that
performs integer arithmetic and logical
operations. The ALU is a fundamental
building block of the central processing
unit of a computer, and even the simplest
microprocessors contain one for purposes
such as maintaining timers. The processors
found inside modern CPUs and graphics
processing units (GPUs) accommodate very
powerful and very complex ALUs; a single
component may contain a number of ALUs.

62. Computer data storage,

63. Computer data storage,
often called storage or memory, is a
technology consisting
of computer components and recording
media used to retain digital data. It is a core
function and fundamental component of
computers. The central processing unit (CPU)
of a computer is what manipulates data by
performing computations. In practice, almost
all computers use a storage hierarchy, which
puts fast but expensive and small storage
options close to the CPU and slower but larger
and cheaper options farther away.

65. This is all about Process

66. This is all about Process
=)

68. Output
Device

69. Convert Electronic

70. Convert Electronic
information produced by the
computer system into
human-intelligible form for
presentation to end users.

71. Output devices include:

72. Output devices include:
1. Video display Units

73. Output devices include:
1. Video display Units
2. Audio Response Units

74. Output devices include:
1. Video display Units
2. Audio Response Units
3. Printers

75. Video Display Units

76. Video Display Units
VDU displays images generated by a computer
or other electronic device. The term VDU is
often used synonymously with “monitor," but
it can also refer to another type of display,
such as a digital projector. Visual display units
may be peripheral devices or may be
integrated with the other components. For
example, the Apple iMac uses an all-in-one
design, in which the screen and
computer are built into a
single unit.

77. Video Display Units
VDU displays images generated by a computer
or other electronic device. The term VDU is
often used synonymously with “monitor," but
it can also refer to another type of display,
such as a digital projector. Visual display units
may be peripheral devices or may be
integrated with the other components. For
example, the Apple iMac uses an all-in-one
design, in which the screen and
computer are built into a
single unit.

78. Audio Response Unit

79. Audio Response Unit
A device that provides synthesized voice
responses to dual-tone multifrequency
signaling input by processing calls based on
(a) the call-originator input, (b) information
received from a host data base, and (c)
information in the incoming call, such as
the time of day.

80. Audio Response Unit
A device that provides synthesized voice
responses to dual-tone multifrequency
signaling input by processing calls based on
(a) the call-originator input, (b) information
received from a host data base, and (c)
information in the incoming call, such as
the time of day.

81. Printers

82. Printers
is a peripheral which makes a persistent
human-readable representation of graphics
or text on paper or similar physical media.

83. Printers
is a peripheral which makes a persistent
human-readable representation of graphics
or text on paper or similar physical media.

84. Printers
is a peripheral which makes a persistent
human-readable representation of graphics
or text on paper or similar physical media.

85. Printers
is a peripheral which makes a persistent
human-readable representation of graphics
or text on paper or similar physical media.

87. This is all about Output Device

88. This is all about Output Device
=)

90. Storage

92. The storage function of a
computer system is use to
store data and program
instructions needed for
processing.

93. Storage devices include:

94. Storage devices include:
1. Primary Storage Unit
(main memory/Hard Disk)

95. Storage devices include:
1. Primary Storage Unit
(main memory/Hard Disk)
2. Secondary Storage Devices
(magnetic disk and tape units, optical disks)

96. Primary Storage
Function Unit

97. Primary Storage Function Unit
(main memory/hard disks)
Primary storage, also known as main storage
or memory is the main area in a computer in
which data is stored for quick access by the
computer's processor. On today's smaller
computers, especially personal computers and
workstations, the term random access memory
(RAM) - or just memory - is used instead of
primary or main storage, and the hard disk,
diskette, CD, and DVD collectively
describe secondary storage or auxiliary storage.

98. Secondary Storage Devices

99. Secondary Storage Devices
(Magnetic disk tape units optical disks)
Secondary storage technology refers
to storage devices and storage media that
are not always directly accessible by a
computer. This differs from primary storage
technology, such as an internal hard drive,
which is constantly available.

100. And This is all about Storage
=)

102. Short
Exercises

104. This is the main
processing Unit

106. CPU or Central
Processing Unit

108. Who is the
mathematician
propose the ALU
concept in 1945 and
design the parts of
CPU

110. John Von
Neumann

112. Give the
acronym of ALU

114. Arithmetic-Logic
Unit

115. That’s All
Thank You
(PowerPoint Presentation of Zealous Data)
or Group 1
=)