introduction to personal computer
TRANSCRIPT
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04/15/2023
Introduction to Personal Computer
Presented by:Haidar Al Fehaid 452
Supervisor:Dr. El Abed, Haikal
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Content overview
Introduction First part : Computer partsSecond part: Ports and connectionsThird part: Input and Output devices (I/O)Summary
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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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First partComputer parts:1) Motherboard 2) CPU3) RAM4) Power supply5) Hard disk drive (HDD)6) Compact Disc Drive (CDD R/W)
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CaseWhat is the case of computer?
It is as a box. Contains the internal parts of computer.Protects the internal parts.
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What are the types of computer case? The types of computer case are: AT, ATX and BTX1) AT ( Advance Technology) 2) ATX ( Advance Technology Extended ) 3) BTX ( Balance Technology Extended )
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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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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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ATX AT
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CPUWhat 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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RAMWhat is the RAM?
Random Access MemoryIt is a temporary storage (short term).Supports CPU to process the instructions and
data quickly.
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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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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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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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Hard disk driveIt 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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CDD R/WCompact Disc Drive – Read/Write.It is a laser/optical storage device.
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Group work
3 Minutes
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Second partPorts and connections:
1) PS/22) USB3) RJ-454) LPT5) VGA6) An audio ports7) Fire Wire
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Ports and connections
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Picture Port name and definitions No
PS/2 ( Personal System ) : is used to connect the mouse.
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PS/2 : is used to connect the keyboard.
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USB ( Universal Serial Bus ): is used to connect various USB devices.
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RJ-45 (Ethernet port): is used to connect the computer to the LAN.
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Ports and connections
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Picture Port name and definitions No
LPT ( Line Printer Terminal ): is used to connect the parallel device such as printer and scanner.
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VGA (Visual Graphic Adapter ): is used to connect display devices.
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An audio ports: is used to connect an audio devices to the computer.
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Fire Wire: is used to connect multiple types of devices that requires faster data transmission speed.
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Ports and connections
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Serial vs. ParallelSerial port Parallel port
All the bits go to one by one through the CPU to process.
New ( plug an play)Supports hot swap
technologyCharges some devices.Runs up to 63 devices in
one time.USB & Fire WireFast data transmission
All the bit go to in one time through the CPU to process.
OldLPT Slow data transmission
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Partner work
2 minutes
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Third partInput devices Output devices
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Input and Output deviceInput 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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GameDivide the trainees to three groups to write the
name of input, output and both ( I/O ) devices on the whiteboard.
Group A: Input devicesGroup B: Output devicesGroup C: Input & Output ( I/O ) devices
The time is 2 minutes.
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Individual work (Quiz)
3 minutes
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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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