Question

Define a computer system from a functional perspective. Draw a functional block
diagram of its architecture and illustrate the operational interactions among the
Central Processing Unit (CPU), memory units, and peripheral interfaces.

31 Jul 2026
Answer :
Word Count : 703
A computer system, from a functional perspective, is an integrated electronic system that accepts data and instructions as input, processes them according to predefined programs, stores data and results, and produces meaningful information as output. It consists of interconnected hardware components that work together under the control of software to perform arithmetic, logical, control, and data management operations. The primary objective of a computer system is to transform raw data into useful information accurately, efficiently, and at high speed. The functional architecture of a computer system is composed of four major units: the Input Unit, the Central Processing Unit (CPU), the Memory Unit, and the Output Unit. These units are interconnected through system buses, which include the __________ _______ ______ _______ ___ ______ ______ ________ ______ ________ _____ ____.
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