Flashcards
Computing revision Flash cards GCSE
Cards in this deck (13)
- 1What is the off/false input?0
- 2What does "1" represent?on/true
- 3What is the program counter?Holds the memory ADDRESS of instructions for each cycle
- 4What is the accumulator?Stores intermediate results of calculations in the ALU
- 5What is the Memory Address Register?Holds any memory ADDRESS about to be used by the CPU.
- 6What is the Memory Data Register?Memory data register holds the actual data or instruction. This may have fetched from memory.
- 7Give examples of the type of calculations the ALU can perform.The type of calculations the ALU can perform are binary shifts, addition and subtractions
- 8What does ALU stand for?Arithmetic and Logic Unit
- 9Describe the purpose of the control unit .The purpose of the control unit is to control the program counter.
- 10Which register is used to allow the CPU to identify which instruction to run next?The register that is used to allow the CPU to identify is the Memory Address Register
- 11Give an example of where the control unit may need to send a control signal to.It can send a signal to the memory
- 12Give an example of where the control unit may receive a control signal from.It may receive a control signal from the keyboard, mouse, webcam, controller and microphone.
- 13Describe the purpose of the cache.The cache stores frequently used data and instructions and is very fast in the CPU. Cache has 3 levels, each is faster or slower and has more or less capacity compared to the others. (or something along these lines.)
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- GCSE Computing Flashcards on Computing revision Flash cards GCSE , created by Phoenix Maloney on 03/02/2022.
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- Phoenix Maloney
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