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Presentation about computer hardware
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- 2. Computer Hardware InternalHardware (Components) External Hardware (Peripherals)
- 3. Computer Hardware Contents: ComputerHardware o Input Devices o Output Devices o System Unit o Storage Devices o Communication Devices
- 4. Computer Hardware The ExternalComponent of the Computer Input Devices o Any peripheral used to input data into the computer • Keyboard • Mouse • Scanners • Monitor • Joystick
- 5. Computer Hardware OutputDevices o Any piece of computer hardware equipment used to communicate the results of a data from data processing activity • Monitors • LCD projector • Printers
- 6. Computer Hardware Storagedevices 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. )
- 7. Computer Hardware Primary Storage •Main Memory or Internal Memory • Directly accessible to the CPU • RAM
- 8. 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
- 9. Computer Hardware Secondary Storage Floppy Disks Hard Disks Optical Disks Magnetic Tape Flash Memory Flash Drive
- 10. Computer Hardware System Unit The system unit houses o The motherboard o The power supply o Storage Devices o Other Devices
- 11. Computer Hardware Internal ComponentsOf The System Unit
- 12. 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
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- 14. Computer Hardware The PowerSupply Unit A device that converts AC to DC
- 15. Computer Hardware Central ProcessingUnit (CPU) CPU is the brain of the computer – Follows instruction of software to manipulate data into information o The Control Unit o Arithmetic /Logic Unit(ALU)
- 16. Computer Hardware Part Operationof 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
- 17. Computer Hardware BehindThe System Unit Ports and Connectors – Dedicated Ports
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