All About The Central Processing Unit (CPU)

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All About The Central Processing Unit (CPU):


The central processing unit (CPU) is the computer component that controls system operations

It’s comprised of an arithmetic logic unit (ALU), which runs all arithmetic and logical operations, and a control unit, which processes the decoding of instructions and implementation of the requested instructions. Older computers employed multiple chips to take on the task. There are some functions that require support chips, which are often referred to collectively as a chip set.

The CPU relies on two inputs to run its operations: instructions and data. The data is passed to the CPU where it is shaped and processed in either supervisor or problem state. In problem state, the CPU works on the data with nonprivileged instructions. In supervisor state, the CPU executes privileged instructions.

There are two basic forms of CPUs produced for today’s computer systems:

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