A computer system is made up of several essential components that work together to process data, execute commands, and perform a wide range of tasks. Understanding these components helps you appreciate how computers function and how to troubleshoot or upgrade them effectively.
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1. Central Processing Unit (CPU)
The Central Processing Unit (CPU) is the brain of the computer. It performs all the calculations, logic operations, and instructions that drive the system.
Main parts of a CPU:
Arithmetic Logic Unit (ALU) – handles arithmetic and logical operations.
Control Unit (CU) – manages the flow of data and instructions.
Registers – temporary storage for quick access to data.
A faster CPU improves overall system performance, making multitasking smoother and more efficient.