Central Processing Units
Central Processing Unit (CPU) is the primary component of a computer system that performs most of the processing tasks. It is responsible for executing instructions of a computer program by performing arithmetic, logical, input/output (I/O) operations and controlling the other components of the system. The CPU consists of two main components: the control unit (CU) and the arithmetic logic unit (ALU). The CU fetches instructions from memory and decodes them, while the ALU performs arithmetic and logical operations. The CPU communicates with other components of the system through buses, which are pathways for data and control signals. The performance of a CPU is measured by its clock speed, which is the number of instructions it can execute per second.
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