Over time, they have become trendy with the rise in computers, from small personal devices to large workstations used for computationally intensive applications. There are many different processors with different speeds, capacity for multitasking, and power consumption. It consists of various components, such as Read-Only Memory, Arithmetic and Logic Unit, Floating Point Unit, Cache Memory, etc.Ĭentral processing units vary from low-power devices like mobile phones to robust systems like supercomputers. Memory stores programs and data to be accessed quickly by the CPU.Ĭomponents of a CPU and their functions: A Central Processing Unit (CPU) is the hardware within a computer that carries out the instructions and manipulates the data of a program. The registers hold data that needs to be processed by the CPU while working on the ALU. ![]() The arithmetic logic unit performs mathematical operations on data in the registers. The control unit tells the other parts how to perform operations. ![]() – The Arithmetic Logic Unit carries out arithmetic and logical operations.Ī CPU comprises four components: a control unit, an arithmetic logic unit, registers, and memory. – The Control Unit directs and manages operation sequences. It interprets and executes instructions from a computer program to perform tasks such as controlling input/output devices, running applications, and handling data. ![]() It is the part of a computer that performs the instructions of a computer program by performing the basic operations such as addition, subtraction, and operations on data in memory. Definition: The Central Processing Unit (CPU) is the brain of a computer.
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