This document provides information about the basic components and functions of a computer system. It discusses the hardware components including the system unit, monitor, keyboard, and mouse. It describes the internal components of the system unit such as drives, ports and buttons. It explains the types of monitors, functions of the mouse, layout and keys of the keyboard. It provides illustrations and diagrams to enhance understanding of computer hardware.

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5. COMPUTER SYSTEM
COMBINATION
HARDWARE
SOFTWARE
LIVEWARE
DESIGNED
RECEIVE
PROCESS
MANAGE
PRESENT
INFORMATION
MEANINGFUL FORMAT

6. HOW DOES THE COMPUTER WORK
DATA LETTER
POEM
SKETCH
INPUT
POINTING DEVICE
KEYBOARD
PROCESSING
CPU MOBO
RESEARCH
SCANNING DEVICE
VOICE-INPUT DEVICE
BIOS CMOS
OUTPUT
MONITOR PROJECTORS SPEAKER
SMART BOARD PRINTER
STORAGE
HDD RAM ROM CD DVD FLASH DRIVE

7. UNKNOWN FACTS
ABOUT COMPUTERS
- The first computer mouse, constructed
in 1964, was made out of wood by
Doug Engelbert.
- The first hard drive was created in
1979 and could only hold 5MB of data.
- Sir Tim Burner Lee invented internet
in1989. by now there will be 17 billion
devices connected to the internet.

8. THE SYSTEM
UNIT

9. - The main part of a computer,
sometimes called the chassis.
THE SYSTEM UNIT

10. DVD-ROM
Drive
Power Button
LED
Audio Port
USB Port

11. - a port for connecting USB type
connectors like mouse, keyboard,
printer and flash drives
USB PORT

12. - a drive for reading and writing
DVDs
DVD-ROM DRIVE

13. - a button used to switch on and
off the computer
POWER BUTTON

14. - a light which indicates if the
system unit has power supply
LED

15. - a port for sound
AUDIO PORT

16. Power Port
PS/2 Port
PS/2 Port
LAN Port
VGA Port
USB Port
Audio Port
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2
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17. - a port intended for power cord
POWER PORT

18. - a port intended for keyboard
PS/2 PORT

19. - a port for flash drives and USB
type connectors
USB PORT

20. - a port for sound
AUDIO PORT

21. - a port intended for mouse
PS/2 PORT

22. - a port used to connect Ethernet
RJ-45 connectors
LAN PORT

23. - a port used to connect monitor
VGA PORT

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25. 1. LED
2. USB
PORT
3. DVD-ROM
DRIVE
4. POWER
BUTTON
5. AUDIO
PORT
ANSWER KEY

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2
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27. 1. POWER
PORT
2. PS/2
PORT-K
3. USB PORT
4. AUDIO
PORT
5. PS/2
PORT-M
ANSWER KEY
6. LAN
PORT
7. VGA
PORT

28. The
Mouse

29. - It is another input device. It aids
the keyboard in giving
commands to the computer.
MOUSE

30. PALM
REST
LEFT
BUTTON
WHEEL
CABLE
RIGHT
BUTTON

31. - It is used by the point finger to
select an object (clicking), open a
program/folder/file(double-clicking)
or move an object (dragging).
LEFT BUTTON

32. - It is used by the middle finger to
open context menus of icons.
RIGHT BUTTON

33. - It is used by the point finger to
scroll up or down the page or
menu.
WHEEL

34. - It is used to connect to a USB
port or PS/2 port on computer.
CABLE

35. - It is used by the palm to be able
to position the fingers correctly
in the mouse.
PALM REST

36. 1. POINTING
2. CLICKING
3. DOUBLE-CLICKING
4. DRAGGING
5. RIGHT-CLICKING
FIVE FUNCTIONS OF MOUSE

37. 1. POINTING
-done by putting the mouse
pointer over an object you want to
select
FIVE FUNCTIONS OF MOUSE

38. 2. CLICKING
-usually done after pointing. This
action is done by pressing the left
button.
FIVE FUNCTIONS OF MOUSE

39. 3. DOUBLE-CLICKING
-done by quickly pressing the left
button two times. This allows you
to open a program or file in the
computer.
FIVE FUNCTIONS OF MOUSE

40. 4. RIGHT-CLICKING
- done by clicking on the right
button once.
FIVE FUNCTIONS OF MOUSE

41. 5. DRAGGING
- allows you to move an object
from one place to another. It is
done by steadily pressing the left
button while moving the mouse.
FIVE FUNCTIONS OF MOUSE

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43. 1. PALM
REST
2. LEFT
BUTTON
3. WHEEL
4. CABLE
5. RIGHT
BUTTON
ANSWER KEY

44. The
Monitor

45. - It is an output device that allows
you to see your work on the
computer.
Those output that you see on the
monitor screen are called
SOFTCOPY.
MONITOR

46. - CRT – Cathode Ray Tube
- LCD – Liquid Crystal Display
- LED – Light Emitting Diode
- OLED – Organic LED
- Touch Screen
- Curved
TYPES OF MONITOR

47. CRT – Cathode Ray Tube
- original
- large, heavy and inexpensive but
obsolete
TYPES OF MONITOR

48. LCD – Liquid Crystal Display
- common type
- have great color, image quality
and great resolution but poor
refresh rate and limited response
time
TYPES OF MONITOR

49. LED – Light Emitting Diode
- more reliable, less expensive,
consume less power and have a
more dynamic contrast ratio but
do not have a good response
time
TYPES OF MONITOR

50. OLED – Organic LED
- uses less power
than LCDs, has
better contrast ratios,
colors are more vibrant, better viewing
angles and produce clearer text
TYPES OF
MONITOR

51. Touch Screen
- can be interacted
with by touching
the screen
TYPES OF MONITOR

52. Curved monitor
- Latest in monitor tech, but
expensive
- more popular among gamers,
video editors and coding users
TYPES OF
MONITOR

53. SCREEN
MONITOR
STAND
LED
POWER
SWITCH
ADJUSTMENT
KNOBS

54. - It displays your work on the
computer.
SCREEN

55. - It supports the weight of the
monitor.
MONITOR STAND

56. - These are buttons used to
adjust the brightness and color
of the screen.
ADJUSTMENT KNOBS

57. - It is used to turn the monitor ON
and OFF.
POWER SWITCH

58. - It is a light at the front part of
the monitor which indicates if
the monitor has electric power.
LED

59. WHAT LETTER OR SYMBOL IS MISSING?
Q E R Y U O P
S F G J L ;
Z X V N , /

60. KEYBOARD – It allows you to enter data in
the computer
1. FUNCTION KEYS – Perform special task
2. ALPHANUMERIC KEYPAD - 26 letters and 0-9
numbers and symbols
3. NUMERIC KEYPAD - Like a calculator
/- Division
*- Multiplication
+-Addition
- Subtraction
4. NAVIGATION KEYS - Used to control the
movement of the cursor
5. SPECIAL KEYS – performs special functions

61. SPECIAL KEYS
1. Esc - close current program
2. Tab - give at least 6 spaces
3. Caps lock - allows letters to be typed in capital
form
4. SHIFT - used to change a small letter into capital
letter
5. Ctrl + alt – useful when combined with other keys
6. Backspace - allows you to erase any character on
the left of the cursor
7. Space bar – put a space between words or
characters
8. Delete - allows you to erase character on the right
side of the cursor
9. Enter – allows you to go to the next line

62. GROUPINGS OF KEYS
1. UPPER ROW –
0 to 9 and Q W E R T Y U I O P
2. HOME ROW –
A S D F G H J K L ;
3. LOWER ROW –
Z X C V B N M , . /

63. PROPER HAND PLACEMENT OF KEYS

64. WHAT LETTER OR SYMBOL IS MISSING?
E U
G L
X N

65. COMPLETE THE GROUP ACCORDINGLY.
RIGHT - MIDDLE : 8, ___, K, ___
RIGHT - POINT : ___, Y, ___, N
7, ___, J, ___
LEFT - POINT : 4, ___, F, ___
___, T, ___, B
LEFT - RING : ___, W, ___, X
RIGHT - SMALL : 0, ___, :, ___