The data bus is a set of parallel wires or connectors that transports data between the processor and main memory.īy increasing the data bus from 32-bit to 64-bit, the computer can transfer twice as much information at one time. Therefore, if we increase the number of cores in a processor, there will be an increase in system performance. CPU cores have to communicate with each other through channels and this uses up some of the extra speed. However, doubling the number of cores will not simply double a computer's speed. CPUs with multiple cores have more power to run multiple programs at the same time. It is common for computers to have two (dual), four (quad) or even more cores. A core contains an ALU, control unit and registers. Factors affecting computer system performance Number of processors (cores)Ī CPU can contain one or more processing units.
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