Components of a Computer System

Hardware
1. Definition: The physical components of a computer
  1. CPU (Central Processing Unit): Processes all the information received from the hardware and software.
  2. Motherboard: The main circuit board within a computer linking all of its main components.
  3. RAM: The 'short-term memory of a computer where the data currently in use is kept. RAM memory is volatile.
    1. Solid State Drive: Non-Volatile Memory storage used to store and access data, much like a computer RAM
  4. ROM: the built-in computer memory that can only be read not written ex. the programming that runs the computer. ROM memory is non-Volatile.
    1. Hard Disk Drive: Non-Volatile Storage where the computer main memory is stored. Contains moving parts.
  5. Graphics Card: An internal board that creates a picture on a display.
  6. Sound card: an expansion card used for producing sound on a computer.
  7. Input and Output Devices
    1. Output: any external device that receives data from the computer for output
      1. Monitor
      2. Speakers
      3. Printer
      4. Projector
    2. Input: A device that sends data to a computer
      1. Keyboard
      2. Mouse
      3. Webcam
      4. Scanner
      5. MICR
      6. OMR
  8. Storage Devices: Capable of storing data temporarily or permanently.
    1. Magnetic Storage: data stored on a magnetized medium. Non volatile and cannot be written ore than once
      1. Hard Disk Drive
      2. Magnetic Tape drive
      3. Cassete
    2. Optical Storage: media is written and read using laser assembly. Some types are read-only, some can be written and read multiple times
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Components of a Computer System

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	Created by Rashida Pryce about 8 years ago