Unseen Comprehension-20 Alim...... (Computer)

Computer.

কম্পিউটার।

The computer is a fairly recent invention. It has now become an essential part of modern life. It has greatly benefited us and brought about revolutionary changes in our life. 

Any device that helps people perform mathematical calculations may be called a computer. In this sense, the abacus is also a simple computer. Today however the term computer refers to a special kind of electronic machine that can perform mathematical calculations and process large masses of information at a great speed. In a few minutes a computer can perform calculations that trained mathematicians would need years to complete. The fastest computer can handle millions of problems in a few seconds. 

It cannot only solve complex mathematical problems quickly and accurately but also perform many operations at once and the same time without any confusion. The computer promises to free man from many monotonous and routine tasks. Nowadays the computer has become very sophisticated and can perform many complicated tasks. It can run a business, play chess, or even compose music. This is why many people call the computer "an electronic brain".