Advantage and disadvantage of using computer

A computer is a general purpose device that can be programmed to carry out a set of arithmetic or logical operations. There are many types of computers that we are using now like personal computers (desktop), mobile computers and mobile devices, game consoles, servers, mainframes, supercomputers, and embedded computers [1]. Since a sequence of operations can be readily changed, the computer can solve more than one kind of problem[2]. Every day, people around the world rely on different kinds of computers for a variety of areas. Computers can be used for educational purpose, in the bank, for entertainment, in railway stations and airports, in office, in hospital, in defence, for designing, and another category. However, computers contain both advantages and disadvatages. Almost every home, office, or school has a computer of some kind these days. The use of computer technology in learning allows the teacher to individualized the learning instructions as well as the technology grants the students the autonomy and making them to learn with their own [3]. In addition to this storing information on a computer disks is one of the most officient ways of keeping data. One computer disk can hold the same amount of information as several books[4]. Then, a computer with a CD-ROM drive can provide access to materials stored on a CD-ROM, including databases (containing descriptions of materials) and full-text (complete) materials. A computer linked to a modem can provide access to information available via e-mail and other Internet services, such as electronic newsletters and websites [5]. Moreover people can communicate with other computer owners through the internet, which offers nowdays everything from making freecalls from foreign countries to doing shoping [4]. The use of computer has also created some problems in society which are as follows. First, different tasks are performed automatically by using computers, so it’s the reason that reduces the need of people and