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- 1what does the cpu stand forcentral processing unit
- 2what is the purpose and the main role of the cputo process programmes and data by repeatedly fetching an instruction form memory and executing it.
- 3what are the three components of the cpucontrol unit.
arithmic logic unit.
immediate access store. - 4what is the purpose of the cuthe cu manages execution of instructions which are usually in some sort of order using the fetch execute cycle
- 5the cu manages execution of instructions which are usually in some sort of order using the fetch execute cycle. this is done by sending control signals to the other part of the cpu it has three main jobs what are these three main jobsto decide which instructions to carry out next and fetches it from memory
to decode the instruction
to execute the instruction - 6what is the role of the cu in the cputhe control unit of the cpu is responsible for fetching and decoding instructions and managing their execution on the processor. the cu tells the alu the computers memory and the hardware devices how to respond to an instruction. it controls the timing and actions of the different components and the flow of the data in the cpu
- 7what is the role of the aluthe alu is where the cpu performs the arithmetic and logic operations.
- 8what is the role of iasstores all the programmes and data temporarily whilst they are in use. these programs and data are also stored permanently on an external storage device such as a hard disc
- 9what is the fetch execute cyclethe steps a cpu goes through in order to process an instruction
- 10what is the role of the program counter in the fetch execute cyclestores the adress of the next instruction to be fetched.
- 11what is the role of the memory adress register in the fetch execute cyclethe address of the current instruction or data being executed is temporarilly stored in the memory adress register
- 12what is the role of the memory data register in the fecth execute cycletemporarily store data being fetched from or written to the main memory of the cpu. all data transferred from the main memory to the cpu goes via the mdr.
- 13—
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- Flashcards on Untitled, created by Shea Mcgovern on 08/05/2024.
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- Shea Mcgovern
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- Created by Shea Mcgovern · Apr 29, 2024
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