Computer – Introduction

computer introduction

In today’s world, wherever we go, we are surrounded by different species computers. They allow us to send or receive data from anywhere in the world with one click. Today we can write emails, play games, watch television, listen to music, work with the data of our office, watch video lectures and do endless things through our computers. Computers come in many forms today and sizes such as desktop, laptop, PDA, PDA, etc.

What is a Computer

A computer is a device that receives information (in the form of digital data) and manipulates it to get some result based on a program or sequence data processing instructions. A programmer is a person who enters data into a computer to obtain the desired end result.

Basic Computer Applications

Computers have become an important part of our daily routine life. You can use your computer to get information about booking tickets (railway, airplane and cinema halls), books in a library, a person’s medical history, a place on a map or the dictionary meaning of the word. Information can be provided to you in shape of text, images, video clips, etc.


Computers are widely used as a tool and aid for the transfer of education. Educators use computers to take notes and presentations of their lectures. Computers are used for development computer based training packages for distance learning using e-learning software and online exams. Researchers use computers to gain easy access to conferences and information about the journal and get global access to research materials.


Computers have had a big impact on entertainment industry. User can download and watch movies, play games, chat, book cinema tickets, use multimedia to create movies, include visual and sound effects using computers, etc. Users may also listen to music, download and share music, create music using computers, etc.


The computer can be used to view the game, view the results, improve the game, play games (such as chess) and create games. They are also used to train players.


A computer is a powerful advertising medium. Advertising can be displayed on different sites, in electronic emails can be sent and product reviews from different customers can to be posted. Computers are also used to create advertisements using visual and sound effects. For advertisers, a computer is the medium through which advertisements can be viewed worldwide. the Internet advertising has become an important factor in marketing plans almost all companies. In fact, Google’s business model is mostly relies on web advertising to generate revenue.


Medical researchers and medical practitioners use computers to access information on advances in medical research or accept opinion of doctors all over the world. The patient’s medical history is kept in computers. Computers are also integral parts of all kinds sophisticated medical equipment such as an ultrasound machine, CAT scanner, MRI, etc. Computers also provide assistance to surgeons during critical surgery like laparoscopic operations, etc.

Science and technology

Scientists and engineers use computers to performing complex scientific calculations for design and manufacture drawings (CAD / CAM applications) as well as for modelling and testing of structures. Computers are used to store complex data performing complex calculations and visualisation of 3-dimensional objects. Complex scientific applications like startup rockets, space exploration, etc. are impossible without computers.


Government uses computers to manage its own operations as well as for electronic control. Sites of different government departments provide information to users. Computers used for filing tax returns, paying taxes, online submission of water and electricity bills to access the land register details, etc. The Police Department also uses computers to search criminals using fingerprint matching, etc.


computers are now an integral part of the home equipment. At home, people also use computers to play games, maintain home accounts to communicate with friends and relatives via the Internet, to pay bills, for education and training, etc. Microprocessors are built into utilities such as washing machines cars, TVs, food processors, home theaters, security devices, etc.