History of computer (part -1) - Ts Read

Sunday, 28 May 2017

History of computer (part -1)

History of Computer

In 1851 Charles Babbage, regarded today as the Father of Computers, wrote:

“It is not a bad definition of man to describe him as a tool-making * animal. His earliest contrivances to support uncivilised life were tools of the simplest and crudest construction. His latest achievements in the substitution of machinery, not merely for the skill of the human hand but for the relief of the human intellect,

are founded on the use of tools of a still higher order.”

Today, that tool is the Computer.

The Beginnings

The history of computers dates back to long, long ago when men fust used their fingers and toes as counting aids. Later, when the cave-dwellers wanted to remember how many animals they had killed m a big him they woold draw crude pic'thres on the cave walls and make regular scratches to record the number of their kills. Briefly, then. when counting began the first early. yet momentous step was taken towalds the inventing of a computer .

The problem of storing Numbers 

Time hurried on, and with it progress. By 650 B.C., the Egyptians were using a system of hieroglyphics and cave-wall pictures to depict numbers. The problem with these cave drawings was that they were not portable and, therefore, only useful within the area in which they were drawn. The other tribes would have to come along and see, if they intended to believe.

Soon, people started using pebbles or shells to count their possessions. The Egyptians had an interesting system. They would make three grooves in the sandand put pebbles into each groove to record each item to be represented. When they wanted to add, they began groove by groove starting from the right side.

This was a good system but, again, it was not quite portable. Later, in an effort to make it more mobile, they put sand and pebbles into a box to form the first crude Abacus.

The Romans, meanwhile, were also busy. They produced a device called a tally-stick. It was a simple wooden stick with a line down the centre and was used for business transactions. A notch was made on the stick to record each aspect of the business transaction. When the deal was completed, the stick was divided into two and each

partner in the transaction received half as a receipt. It was a useful system but it had its limitations.