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Central Processing Unit (Clock speed (Computers can only do one thing at a…
Central Processing Unit
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Cores
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In an ideal world, running two CPUs would give you twice the performance. In real life this is not quite the case because many applications have not been written to take advantage of extra processors.
However, by having more than one processor, you would certainly see an improved performance.
A modern processing device
However, by having more than one processor, you would certainly see an improved performance.
A modern processing device may contain two or even four CPUs. Some chip-making companies call these CPUs 'cores'. So a dual-core device means it contains two CPUs and a quad-core contains four.
Clock speed
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It may appear that many things are happening simultaneously, for example you may be listening to music while writing an essay and also downloading some software in the background.
In reality, the computer can only process one instruction at a time. It is just that the machine is so fast, everything seems to happen at once.
CPU processes digital data by taking each piece of data one-at-a-time and doing something with it. The amount of time that it has to process each piece of data is controlled by a quartz clock inside the CPU.
With every tick of the clock, the CPU is able to process one piece of data or execute clock one instruction.
The CPU clock speed is measured in cycles per second. 1 cycle per second is also known as 1 Hertz
A computer running at 1GHz can carry out a thousand million instructions per second.
The clock on a modern desktop computer runs extremely