HardwareStudents:Mahmood MthaferMuhammad HamidFarman Fazil

Computer Hardware

Internal Hardware (Components) External Hardware (Peripherals)

Computer Hardware

Contents: Computer Hardwareo Input Deviceso Output Deviceso System Unito Storage Deviceso Communication Devices

Computer Hardware

The External Component of the Computer

Input Deviceso Any peripheral used to input data into the computer• Keyboard• Mouse• Scanners• Monitor• Joystick

Computer Hardware

Output Deviceso Any piece of computer hardware equipment used

to communicate the results of a data from data processing activity

• Monitors• LCD projector• Printers

Computer Hardware

Storage devices This are devices that are use to keep information

for future use They may be internal (e.g. hard disk RAM and

ROM , etc.) or external (e.g. flash drive ,flash memory , etc. )

Computer Hardware

Primary Storage• Main Memory or Internal Memory• Directly accessible to the CPU• RAM

Computer Hardware

Secondary Storage External Memory or Auxiliary Storage Not directly accessible to the CPU I/O Channel is used to access the

Secondary Storage

Computer Hardware

Secondary Storage Floppy Disks Hard Disks Optical Disks Magnetic Tape Flash Memory Flash Drive

Computer Hardware

System Unit The system unit houseso The motherboardo The power supplyo Storage Deviceso Other Devices

Computer Hardware

Internal Components Of The System Unit

Computer Hardware

The Motherboard Main Circuit Board in the computer

that contain ports for• Keyboard , mouse and printers Installed Processor and memory chip Expansion slots for additional circuit

boards – video sound and communication modem

Computer Hardware

The Motherboard

Computer Hardware

The Power Supply Unit

A device that converts AC to DC

Computer Hardware

Central Processing Unit (CPU)

CPU is the brain of the computer – Follows instruction of software to manipulate data into information

o The Control Unito Arithmetic /Logic Unit(ALU)

Computer Hardware

Part Operation of the CPU Control Unit :Decodes instruction stored in

the CPU and carries the instruction ALU :Performs Arithmetic and Logical

Operations in the CPU Registers: Temporarily stores data during

processing by the CPU Buses: Electrical data roadways in which

data travels

Computer Hardware

Behind The System Unit Ports and Connectors – Dedicated Ports

Computer Hardware

THANK YOU