classification of computers
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The best training on the classification of computers for all students.TRANSCRIPT
Dominic Boye Jnr.
Classification of computers
There are basically three main ways to classify computers. These are:By TypeBy PurposeBy Size/ Capacity
By TypeThere are three main
types of computers under this class.
They include:Digital computersAnalogue computersHybrid computers
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.
Examples of digital computerso Desktop computerso Laptop computerso Mobile phoneso iPadso iPhoneso Scientific calculators
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.
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.
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
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.
Examples of special purpose computers
Computers for chemical processes.
Computers in digital watches.
General Purpose Computers
A general purpose computer is not limited to the number of applications it can be used for.
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
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
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
Examples of Micro Computers
Desktop computersLaptopsWorkstationsIPadsMobile phones
Mini Computers
A mini computer is one whose size, speed and capacity lies between those of macro computers and micro computers