A computer is simply defined as a programmable machine that receives input, stores and operates data, and provides output in a useful format. There are two main characteristics of computers: it can run a prerecorded list of programs and it responds to a set of instructions in a very well defined manner. These characteristics have made the computer a very useful device which can perform tougher tasks in just few clicks. Computer has made things easy for us and almost used in every aspect of life.
Today, most of the work is done by computers. Many industries from banking to industrial sector and from business to domestic class largely rely on the computer in one way or another. Computer along with internet has made things as easy as with one click you can buy things online, you need not to go to market. You can make online transactions while sitting in your bedroom. You can read news; contact your friends and family sitting abroad conveniently. This all become possible due to the rapid development in the computer industry. The advancement in technology brings new aspects of computer development everyday. It is important to keep pace with this development to get maximum performance out of your computer device.