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Computer Hardware

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A general introduction to computer hardware for students at the HS level.

A general introduction to computer hardware for students at the HS level.

Published in: Technology, Business

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  • Explain further: Input devices Storage devices – HD Output devices
  • What is a chip? Contains and Integrated circuit, a very tiny piece of silicon with electronic circuits. CPU and Memory (RAM and ROM) come in chips.
  • One MHz represents one million cycles per second. For example, a microprocessor that runs at 200 MHz executes 200 million cycles per second. Each computer instruction requires a fixed number of cycles, so the clock speed determines how many instructions per second the microprocessor can execute. To a large degree, this controls how powerful the microprocessor is. One GHz represents 1 billion cycles per second.
  • Transcript

    • 1. Computer Hardware Rita Ester
    • 2. Computer
      • Hardware + Software
      • Electronic device that
      Takes data in Input devices Outputs information Output devices Stores data Storage devices Processes data CPU
    • 3. Mother Board
      • contains the computer's basic circuits and parts
      BIOS BUS RAM CPU BUS BUS Battery Expansion Slots and Expansion Cards
    • 4. BIOS
      • Basic Input Output System,
      • wakes up the computer when you turn it on (Boot process),
      • starts the operating system,
      • Is stored on a ROM chip.
        • Read Only Memory.
        • The battery supports the ROM chip.
    • 5. Chip
      • Integrated circuit
      • Tiny piece of silicon with electronic circuits
      • CPU or memory (RAM and ROM) on a chip
    • 6. CPU
      • Central Processing Unit
      • (Micro-)processor
      • Brain of the computer.
      • Processes data and instructions.
      • Contains the ALU.
        • Arithmetic Logic Unit
      • Has a clock rate.
        • Sets the computer speed.
        • Speed measured as MHz, GHz.
    • 7. System Properties
    • 8. RAM
      • Random Access Memory
      • Holds data and programs while the CPU uses them
      • Everything disappears when power is off
      • Types: SDRAM, RDRAM.
    • 9. BUS
      • On the mother board
      • Path for data
    • 10. Expansion Card
      • Expands the capabilies of the CPU
      • Example: Graphics card.
      • Sits in an expansion slot.