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Flashcards do conjunto (16)
- 1What is the CPU commonly described as ?The Brain
- 2What does the CPU stand forthe central processing unit
- 3what is the purpose of the CPUto process data
- 4Put these in order : Execute, decode, fetchFetch - decode - execute
- 5what happen in the "Fetch "- decode - execute cycle ?The CPU fetches data and instructions from main memory and stores them in the "registers"
- 6Explain what the computer does during the "decode" section of the fetch - decode - excute cycleThe CPU makes sense of the instruction that it has just fetched
- 7Explain what happends during the "Excecute" section of the fetch - decode - execute cycleThe instruction is carried out. The result of the processing is stored in another register
- 8Name the three Main parts of the CPU- Control Unit
- IAS (immediate access store)
-ALU arithmetic and logic unit - 9What does the control Unit do ?- Controls the hardware attached to the system to makes the commands given to it by the application software are being used
- It controls the input and output of data so that signals go to the right place
- It controls the flow of data in the CPU - 10What does the IAS (immediate access store) doit holds the data and programs needed at that instant by the control unit. The CPU reads data and programs kept on the backing storafe and stores them temporarily in the IAS's Memory
- 11What does the ALU ( arithmetic and logic unit ) do ?Arithmatic part forms calulations
Logic part deals with logic and comparisons, eg, it works out if one value is greater, equal or less than another - 12With every tick of the clock, the CPU can process how many pieces of data or how many intructions can be executed ?One
- 13What is the CPU clock speed measured in ?cycles per second 1 cycle per second = 1 hertz
- 14A computer running at 1 GHz can carry out how many instructions per secondA thousand million
- 15The higher the clock speed...... the faster the performance, but it runs hotter and consumes more power
- 16—
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- FlashCards sobre Sem título, criado por Asheena Vincent em 05-02-2021.
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- Asheena Vincent
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