Hardware

Hardware

Memory
1. ROM
  1. Read-Only Memory
  2. Computers don't need as much ROM
  3. Just contains the basic instructions to get the computer started at boot up
  4. Instructions are there all the time
    1. Even when the computer is switched off
2. RAM
  1. Random Access Memory
  2. Stores data
  3. Computers need a lot of RAM
  4. Sorted in groups of 1s and 0s
  5. Each 1 or 0 is called a bit
  6. Bit= Binary Digit
  7. Usually divided into 8 bits
  8. 8 bits generally make one byte
Centeral Processing Unit (CPU)
1. Known as Processor or the Microprocessor
  1. Because so small
2. Set of electrionic circuits
  1. Controls the computer by running the programs
    1. Programs are stored by RAM
3. Made from billions of transistors
  1. More there are, the faster the processor is.
4. Control unit runs the programs and directs operations
Circuit Boards
1. Motherboards
  1. All electric components in the computer are attached to the motherboard
  2. Connections are printed onto the board
    1. Components are plugged into or smoldered onto the board
2. Sound Card
  1. Some computers have a special set of circuits that produce sound signals
    1. Sounds go to loud speakers
  2. Are generally integrated onto the motherboard
3. Video Card
  1. Set of circuits that produce electrical signals
    1. Electrical signals make the image on the screen
  2. Often integrated onto the mothermoard
  3. Some computers have seperate high-quality video cards
    1. Useful for playing games and watching films

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	Erstellt von isabel.nemitz vor fast 11 Jahre