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Describe the major components of a desktop microcomputer and what they do Personal and desktop microcomputers PC have become indispensable office equipment in many firms These powerful machines have revolutionized business computing and information management by their variety of applications These PCs are equipped with internal memory and disk capacity through the workings of the microprocessor chip which determines the varying degrees of sophistication speed and applicability of PCs These PCs usually have disk drives through which data is stored in floppy diskettes hard disks and some have magnetic tape cartridges to provide back-up copies for security purposes The basic PC would have a monitor which is usually colour but can be monochrome and it is often connected to a printer of the dot matrix inkjet or laser-type The PC can also be attached to a modem to facilitate inter-PC communication and to allow downloading of data Within a desktop computer box there many components that make up a microcomputer In this essay I will describe the major components of a microcomputer The individual function of each component will be described and how they integrate together to form a microcomputer The main hardware components of a microcomputer are the Central Processing Unit CPU memory motherboard storage devices display device communication devices graphics cards and sound cards The heart of a microcomputer is the microprocessor this was developed in the late 1970s as a result of large-scale integration LSI which made it possible to pack thousands of transistors diodes and resistors onto a silicon chip A microprocessor is an integrated circuit built on a tiny piece of silicon It contains thousands or even millions of transistors which are interconnected via superfine traces of aluminium The transistors work together to store and manipulate data so that the microprocessor can perform a wide variety of useful functions The particular functions a microprocessor performs are dictated by software Microprocessor
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