Types of computers

There are 3 types of electronic computers based on the technology being used:-

1. Analog Computers
2. Digital Computers
3. Hybrid Computers

1. Analog Computers:- Analog Computers are computing device that works on continuously changeable aspects. The analog computers give approximate results. It generally deals with physical variables such as voltage, pressure, temperature, speed, etc. The accuracy of an analog computer is less as compared to digital computers.

2. Digital Computers:- A digital computer operates on digital data such as numbers. It uses a binary number system in which there are only two digits 0 and 1. Digital computers are more accurate than analog computers. Digital computers are made for both general purpose and special purpose.

A special-purpose computer is one that is built for a specific application. General-purpose computers are used for any type of application.

3. Hybrid Computers:- A hybrid computing system is a combination of analog and digital computers. It has the speed of an analog computer and the accuracy of a digital computer. It may accept digital or analog signals but an extensive conversion of data from digital to analog and analog to digital has to be done.

Classification of  Digital Computers

Based on performance, size, cost, and capacity, digital computers are classified into four different types: Super Computers, Mainframe Computers, Mini Computers, and Micro Computers.

(1) Mainframe Computer:- Mainframe computers are capable of processing data at very high speeds- millions of instructions per second. Mainframe computer setup costs very high. These computers are large and very powerful computers with very high memory capacity. These can process huge databases such as census at an extremely fast rate. They are suitable for big organizations, banks, industries, etc.

(2) Mini Computers:- Mini Computers are smaller than mainframe computers. Mini Computers are a multi-user and time-sharing system. These are mainly used in an organization where computers installed in various departments are interconnected. Mini Computers are widely used in industries, small businesses, etc.

(3) Micro Computers:- Micro Computer is a general-purpose computer. These are also known as Personal Computers. This type of digital computer uses a microprocessor and includes both desktops and laptops. The cost of these computers can a few thousand rupees. Microcomputers are used in homes or personal business.

(4) Super Computers:- The term Super Computers is used for computers with the great operating speed and Power. Super Computers are the fastest computer in all types. These are the most expensive computers because they use the latest technology to achieve superior performances. They are used only for limited applications like weather forecasting, design of drugs, scientific research centers, and simulation of complex problems.