Flashcards
Components of a computer
Cards in this deck (9)
- 1What are the 8 main registers in the CPU?- PC (program counter)
- ACC (accumulator)
- MAR (memory address register)
- MDR (memory data register)
- CIR (current instruction register)
- CU (control unit)
- ALU (arithmetic logic unit) - 2What does the control unit do ?Directs the flow of data between
the CPU and other devices. - 3What is a bus ?Set of parallel wires connecting two or more components of a computer
- 4What are the 3 main buses ?Address, Data, Control
- 5what is the control bus do ?A bi-directional bus used to transmit control signals between internal and external components
- 6What are the main factors that affect processor performance?- Clock Speed
- Number of cores
- (The amount and type of) cache memory - 7What is clock speed?How many processing cycles a processor can complete per second
- 8What is the function of the system clock?To synchronise CPU operations
- 9—
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- Description
- contains all of section 1 of a-level ocr textbook
- Created by
- Amara f
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