An introduction to the evolution of computers

The processor card, keyboard, monitor and cassette drive were all mounted in a single metal case. The machine also included a built-in Datassette for data storage located on the front of the case, which left little room for the keyboard. The was announced in June and the first units were shipped in mid October

An introduction to the evolution of computers

A computer is an electronic device used for storing and processing data and carrying out sequence of operations. In short, it is a device which is invented to simplify the complicated tasks. Because it is not a single machine but a collection of different complicated parts,so development of each part can be considered as a separate invention.

Many Scientists have contributed to the history of computers. Let us go through various computing devices which were developed prior to the existing computer.

Abacus Many centuries ago when man started to count the numbers, he thought of a device which can trace the numbers and thus came the existence of ABACUS. It was the first counting device which was developed in China more than years ago. The name Abacus was obtained from Greek word Abax which means slab.

This device basically consists of a rectangular wooden frame and beads. The frame contains horizontal rods and the beads which have holes are passed through the rods.

Counting was done by moving the beads from one end of the frame to the other. The device was mainly developed for performing multiplication and division. Later in he also introduced logarithms. It was the first device with an ability to perform additions and subtractions on whole numbers.

The device is made up of interlocked cog wheels which contains numbers 0 to 9 on its circumference. When one wheel completes its rotation the other wheel moves by one segment. Pascal patented this device in and produced it on mass scale and earned a handful of money.

The system stores the data coded in the form of punched holes. Tabulator Herman Hollerith also invented Tabulator which was the first step towards programming.

An introduction to the evolution of computers

The first tabulator which he invented in was used to operate only on census cards. As he was a statistician in census bureau, he developed devices to simplify the tasks related to his department.

Later inType 1 tabulator was developed with a plug board control panel which allowed it to do different jobs without being rebuilt. His inventions were the basis for the modern information processing industry.

Digital Era Coming to the digital era, Binary system made its entry into the computer world. This system was suggested by Claude Shannon, an American Mathematician.

The first electronic computer was built by Dr. This computer used vacuum tubes for data storage. It was designed mainly for solving systems of simultaneous equations.

InGeneral Purpose Computer was developed which contained valves and used to consume kilowatts of power and weighted several tonnes. Transistors InTransistors were introduced into the computers.

With the introduction of transistors, computations were simpler and faster. InIntegrated Circuit IC came into existence which was later used in the computers.

InMainframe computer was designed which used IC for the first time. InMemory chip with 1KB storage capacity was developed by Intel.

InFirst micro computer was developed by H. Watch out this space for our upcoming articles related to Future of Computers which includes Optical Computing and Surface Computing…….Before learning about evolution of computers, first let us know the definition of a computer.

A computer is an electronic device used for storing and processing data and carrying out sequence of operations.

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History of personal computers - Wikipedia