The document discusses the key components of a personal computer. It covers the main internal parts like the motherboard, CPU, RAM, and power supply. It also looks at external ports and connections such as USB, Ethernet, and audio ports. Finally, it examines common input devices that send data to the computer and output devices that receive information from the computer.

1. Presented by:
Haidar Al Fehaid 452
Supervisor:
Dr. El Abed, Haikal
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2. Content overview
 Introduction
 First part : Computer parts
 Second part: Ports and connections
 Third part: Input and Output devices (I/O)
 Summary
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3. Introduction
 What is the personal computer?
 It is an electronic device.
 Stores data and information.
 Has hardware and software linked together.
 Process data and information.
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4. First part
 Computer parts:
1) Motherboard
2) CPU
3) RAM
4) Power supply
5) Hard disk drive (HDD)
6) Compact Disc Drive (CDD R/W)
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5. Case
What is the case of computer?
 It is as a box.
 Contains the internal parts of computer.
 Protects the internal parts.
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6. What are the types of computer case?
 The types of computer case are:
 AT, ATX and BTX
1) AT ( Advance Technology)
2) ATX ( Advance Technology Extended )
3) BTX ( Balance Technology Extended )
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7. Motherboard
What is the motherboard?
 It is the main printed circuit board inside the computer.
 Contains internal components installed on it.
 Enables to connects all computer parts together.
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8. What are the common type of motherboards?
 The common type of motherboards are:
1) AT ( Advance Technology)
2) ATX ( Advance Technology Extended )
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9. ATX AT
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10. CPU
What is the CPU?
 Central Processing Unit.
 It is the brain of computer.
 Controls internal and external parts.
 Contains Control Unit & Arithmetic Logic Unit.
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11. RAM
What is the RAM?
 Random Access Memory
 It is a temporary storage (short term).
 Supports CPU to process the instructions and data
quickly.
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12. What are the types of RAM?
Dynamic RAM Static RAM
 Charges leak
 Need refreshing even when powered
 Simpler construction
 Smaller per bit
 Less expensive
 Need refresh circuits
 Slower
 Main memory
 No charges to leak
 No refreshing needed when powered
 More complex construction
 Larger per bit
 More expensive
 Does not need refresh circuits
 Faster
 Cache
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13. Power Supply
 Converts the volt from the Alternating Current (AC)
to the Direct Current (DC).
 Provides the suitable volts for the internal parts of
computer.
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14. What are the two types of power supply?
AT ATX
 Old standard
 Uses with AT motherboard
 Two 12-pin plugs
 Physical switch
 Provides less than 250 watts
 New standard
 Uses with ATX motherboard
 One 20/24 pin plug
 Soft switch
 Provides 300 watts or more
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15. Hard disk drive
 It is the secondary storage device that permanently
stores all data and information of computer.
 An electromagnetic storage device.
 Stores operating system.
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16. CDD R/W
 Compact Disc Drive – Read/Write.
 It is a laser/optical storage device.
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17. Group work
3 Minutes
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18. Second part
 Ports and connections:
1) PS/2
2) USB
3) RJ-45
4) LPT
5) VGA
6) An audio ports
7) Fire Wire
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19. Ports and connections
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20. PicturePort name and definitionsNo
PS/2 ( Personal System ) : is used to connect
the mouse.
1
PS/2 : is used to connect the keyboard.
2
USB ( Universal Serial Bus ): is used to
connect various USB devices.
3
RJ-45 (Ethernet port): is used to connect the
computer to the LAN.
4
Ports and connections
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21. PicturePort name and definitionsNo
LPT ( Line Printer Terminal ): is used to
connect the parallel device such as printer and
scanner.
5
VGA (Visual Graphic Adapter ): is used to
connect display devices.
6
An audio ports: is used to connect an audio
devices to the computer.
7
Fire Wire: is used to connect multiple types of
devices that requires faster data transmission
speed.
8
Ports and connections
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22. Serial vs. Parallel
Serial port Parallel port
 All the bits go to one by one
through the CPU to process.
 New ( plug an play)
 Supports hot swap technology
 Charges some devices.
 Runs up to 63 devices in one
time.
 USB & Fire Wire
 Fast data transmission
 All the bit go to in one time
through the CPU to process.
 Old
 LPT
 Slow data transmission
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23. Partner work
2 minutes
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24. Third part
 Input devices
 Output devices
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25. Input and Output device
 Input device: uses to enter data or information into a
computer.
 Output device: uses to send data or information from a
computer to another device that connected to the
computer.
 Note: some devices can be both input and output
devices such as touch screen etc.
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26. Game
 Divide the trainees to three groups to write the name of
input, output and both ( I/O ) devices on the whiteboard.
 Group A: Input devices
 Group B: Output devices
 Group C: Input & Output ( I/O ) devices
The time is 2 minutes.
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27. Individual work (Quiz)
3 minutes
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28. Summary
 This lesson talk about :
1) The important parts inside the computer.
2) The ports and connections.
3) The input and output devices.
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