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Answered

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explain the types of computer on the basis of model
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Sagot :

SparklyAnita

XT(extra technology) computer: it cannot support GUI Based operating system. its processing speed is 477MHz

AT(advanced technology):it supports GUI Operating system. Its processing speed is 2GHz

PS/2:is a laptop computer which is rechargeable

and battery powered. it's operated with OS/2 operating system.

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ridmitharuka

Answer:

XT Computers (Extended Technology)  

AT Computers (Advanced Technology)

PS/2 Computers (Personal System 2)

Explanation:

XT Computers :  

            The computers having 8086 or 8088 microprocessor and processing speed of 4.77 Mhz are known as XT Computers. These computers are outdated now because they cannot run on latest software versions.

AT Computers :  

                  The computers having 80286 or later versions of microprocessors are known as AT Computers. Their storage capacity as well as speed is much higher than XT computers. Besides that they have math  co-processor to support main processors to perform complex mathematical calculations.

PS/2 Computers:

                  IBM developed another model of computer in 1990 that have much advanced architecture design that AT computers. They are known as PS/2 computers. They are much faster than AT computers. Most of the laptop computers based on PS/2 model use OS/2 or UNIX operating system and 1.44 MB floppy diskette.

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