classification of computers
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The best training on the classification of computers for all students.TRANSCRIPT
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Dominic Boye Jnr.
Classification of computers
There are basically three main ways to classify computers. These are:By TypeBy PurposeBy Size/ Capacity
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By TypeThere are three main
types of computers under this class.
They include:Digital computersAnalogue computersHybrid computers
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Digital computers
These are computers that represent data /information in a binary form. That is they represent signals in just two states. 0s and 1s are used during data communication.
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Examples of digital computerso Desktop computerso Laptop computerso Mobile phoneso iPadso iPhoneso Scientific calculators
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Analogue computers
These computers represent data/information in a continuous form. That is there are no breaks during signal transmission. They represent information by processing measurable physical quantities.
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Hybrid computersThese computers exhibit
features of analogue computers and digital computers. The digital component normally serves as the controller and provides logical operations, while the analogue component normally serves as a solver of different equations.
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By PurposeComputers can also be
classified according to the purpose or application to which it is put. There are two(2) main groups under this category, these are:
o Special purposeo General purpose
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Special Purpose Computers
A computer is said to be special purpose if it is designed to solve a specific class of problem for which it was made.
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Examples of special purpose computers
Computers for chemical processes.
Computers in digital watches.
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General Purpose Computers
A general purpose computer is not limited to the number of applications it can be used for.
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By Size/CapacityThe capacity of a computer
refers to the volume of data or information it can process or store and the speed at which it works.
The three main computers under this group are:
Macro ComputersMini ComputersMicro Computers
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Macro ComputersThey are the largest of all the
computers in terms of price, memory size, power and speed of processor.
Characteristics:Very expensiveGenerate a lot of heatLarge memory sizeWider variety of peripheral
support.Supports multiple users
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Micro computersThey are the smallest of all the
computers. They are also called Personal Computers because they are used by one person at a time.
Characteristics:Small in sizeUsed by one personGenerate less heatNot expensive
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Examples of Micro Computers
Desktop computersLaptopsWorkstationsIPadsMobile phones
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Mini Computers
A mini computer is one whose size, speed and capacity lies between those of macro computers and micro computers