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Datacare Ahshay
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The Processor (CPU)
Each type of computer can be designed differently, but those are usual features of a
CPU:
- Can store information in special registers (ex. ACC = accumulator).
- Can perform arithmetic operations: + - x / using one value in the accumulator and one
value from memory
- Can transfer information between CPU registers and memory
- Executes instructions, one at a time, fetching them from memory
- Address bus and data bus are electrical lines used to communicate between processor and
memory
- Instructions may consist of several steps. Each step is executed during a clock cycle
- Clock: Tics (and tacs) at precise intervals; the faster the clock, the faster things
will happen in the computer.
- Clock speed is measured in Cycles per Second or Hertz. 1MHz is one million cycles per
second.
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