Classification of Computers


 
 
Concept Explanation
 

Classification of Computers

 Computers are mainly classified in three types as follows :

Based on Size 

On the basis of size, computers are categorised as follows

Microcomputer

These types of computers are the least powerful, yet the most widely used and are also called portable computers. Microcomputer consists of three basic categories of physical equipment, i.e. system unit, input/output unit and memory unit.

Some types of microcomputer are as follows

(a) Desktop Computer or Personal Computer (PC) These are small, relatively economical computers. These are based on the microprocessor technology (Integrated Circuit-IC).

(b) Laptop These computers are also known as ultra book or notebook. These are portable and lightweighted. They include rechargeable battery, so these can work anywhere.

(c) Handheld or Palmtop: -  Computer These are the smallest and are designed to fit into the palm. So, these are also known as Palmtop. They are practical for certain functions such as phone books and calendars. They use the pen for input instead of keyboard. e.g. PDA (Personal Digital Assistant), tablets, etc.

(d) Tablet Computer : -  They have key features of the notebook computer, but these can accept input from a pen instead of the keyboard or mouse.

(e) Workstation Computer: - These are computers dedicated to a user or group of  users engaged in business or professional work. It includes one or more high resolution displays and a faster processor than a Personal Computer (PC).

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Sample Questions
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Question : 1

Which computer is used for Computer Aided Design (CAD) calculations?

Right Option : A
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Question : 2

Which of the following is/are correct ?

(i) PC stands for Private computers 

(ii) PDA stands for Personal Digital Assistant 

(iii) FLOPS stand for Floating point operations per second

 

Right Option : A
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Explanation
Question : 3

A hybrid computer is the one having the combined properties of _________________.

Right Option : C
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Explanation
 
 


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