Flashcards
Computer Science
Cards in this deck (5)
- 1What is the purpose of the CPUfetches instructions from memory decodes the instructions before executing them
- 2what is the purpose of the ALU control unit AccumulatorALU performs mathematical operations
Control Unit sends appropriate signald to other parts of the computer. controls timing of operations and flow of data sent to processor
Accumulator is a register for short term immediate storage of data coming from ALU - 3how does clock speed cache size number of cores affect speed of computerthe faster the clock speed the faster the CPU will run and the more instructions processed per second
the larger the cache size the less time spent accessing memory.
as cache is built into the CPU
the greater the number of cores the more instructions able to be processed as they are shared amongst the cores and done at the same time. onky works if instruction is divisible - 4what is the purpose of embedded systemsthey are dedicated systems that are designed for a fixed purpose. Their instructions do not change
- 5what are examples of embedded systemswashing machine
microwave
tv
traffic light
electric oven
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- Flashcards on Computer Science , created by Victorious Eluwade on 26/07/2017.
- Created by
- Victorious Eluwade · Jul 2017
- Updated
- Sep 18, 2017
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