The word computer comes from the Greek compute word. Calculate the meaning of compute or calculate. And computer terminology means the calculator. But now the computer is not just a counting machine. Computer is an instrument that receives information and analyzes and presents through various processes. The development of civilization and its rapid progress now has a profound influence on mathematics and computer. The first computer in Bangladesh came in 1964.

History

In the prehistoric era, various efforts of inventing the instruments of calculation are considered as computer history. In ancient times, man used to use mussels, gravel, rope gitt etc. to understand the number. Abacus, an ancient counting machine, is considered to be the first device in computer history.It was discovered in Babylon in 2400 BCE in Babylon. The composite machine has been replaced by the calculator in the abacus frame. Abacus was created as 450/500 BC in Egypt or in China as a counting instrument.

In 1616, Scotland's mathematician John Napier used to print or use punctuation or rack to calculate. These rocks are known as John Napier's bone. In 1642, 19 year old French scientist Blaise Pascal invented the first mechanical calculator. He started the process of adding tooth with wheeled wheel or gear. 1671 German mathematician Gottfried von Libnese Pascal, using the wheel and rack, based on the quality and the ability to divide.Develop advanced mechanical calculators. He named the machine Rechoning Mechine. Later in 1820, Thomas D. Kommer revised the recoding machine and made Libny's device popular.

In the beginning of the nineteenth century, the idea of ​​the creation and use of a modern device (which can only be mechanically measured, without any intelligence, mathematical calculations) firstly promoted Charles Barbez. He named it Difference Engine. While working with this difference engine (in 1833), he gained ideas in an advanced and universal instrument called analytical engine. But he could not finish any work due to lack of necessary equipment and money.

The first computer in the world
The true origins of computer science are Alan Turing's first theoretical and later practical research. From the middle of the twentieth century, modern computers began to develop. Microcomputer rapidly evolving as a result of the microprocessor innovation in 1971. Different types of personal computers or PCs are priced at different prices and sizes in the market.
She has been invented with a lot of operating systems, program languages, countless practical package programs. There has also been a widespread expansion of computer networks and the Internet and associated services and services. Many institutional and non-formal computer education and research institutes have been established and expanded to provide computer education. In recent times, computer and information technology
(Information Technology) or IT business has taken a large part of the business and the employment is largely computer-based.

After the Intel Corporation of the United States invented the microprocessor in 1971, the microprocessor-based computer started coming to market. Since then, a great revolution has been achieved in the shape and efficiency of the computer. In the year 1981, IBM Computer Personal Computer or PC After that one was invented by a high-powered microprocessor and a powerful PC was being created. IBM Company has started IBM Computer Computing
With no restriction in the creation of IBM compatible computer, the cost of such computers decreased greatly and its usage continued to increase. At the same time, IBM Computer and Apple Computer Inc. released their invented Apple-Macintosh computer market. But Apple
Because the company did not show any kind of generosity in compatibilizing computer, Macintosh computers were too much for the price, so Apple did not get much popularity. However, due to some special features, Apple Macintosh computers were widely used in printing industry.