Computer Hardware 0.0 / 5 ? ComputingHardwareGCSEOCR Created by: abi_elizabeth_cotter51Created on: 14-04-16 14:36 What does CPU stand for? Central Processing Unit. 1 of 10 What cycle does the CPU perform? The fetch-execute cycle. 2 of 10 What does the fetch-execute cycle involve? Fetching the instruction from the memory, decoding the instruction to find out what processing to do and executing (carrying out) the instruction. 3 of 10 What is the boot sequence? A sequence of processes that contain all of the data and instructions needed to get the computer up and running. 4 of 10 What does the boot loader do? Starts the boot sequence when the computer is switched on. 5 of 10 What happens when the boot sequence is completed? Control is handed to the operating system to provide the programs for the CPU to process. 6 of 10 What are the three things the speed at which the CPU can process things depends on? The CPU clock speed (or the processor speed), the cache memory and the number of processor cores. 7 of 10 How is the clock speed measured? In cycles per second, known as hertz (Hz). 8 of 10 How are processor speeds typically measured? Billions of cycles per second, known as gigahertz (GHz). 9 of 10 What do multi-core processors include? Multiple CPUs working together. 10 of 10
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