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Kerry has heard of a CPU but does not know what it is - OCR - GCSE Computer Science - Question 1 - 2019 - Paper 1
Question 1
Kerry has heard of a CPU but does not know what it is. (i) The following sentences describe the purpose of a CPU. Complete the sentences by filling in the missing w... show full transcript
Worked Solution & Example Answer:Kerry has heard of a CPU but does not know what it is - OCR - GCSE Computer Science - Question 1 - 2019 - Paper 1
Step 1
Step 2
Explain how the cache size can affect the performance of the CPU.
Answer
The cache size can significantly affect CPU performance because a larger cache allows for more data to be stored close to the CPU. This means that it can access data and instructions faster than retrieving them from the main memory.
A CPU with a larger cache can reduce latency and wait times, allowing for quicker processing of tasks, especially those that require repeated access to the same data.
In contrast, a smaller cache may lead to more frequent cache misses, where the CPU has to retrieve data from slower main memory, thereby impacting overall performance.