Computer Information Technology & Its Generations

Information Technology:

Information technology (IT) is called information technology. It refers to all the specialized methods and means that are used to efficiently collect data. Data is processed and converted into useful information. Incoming information is stored. This information is sent to the desired people to avail them. These sources include mail, wire telephones, and computers. But among all these means the most importantly fast and efficient means is the computer.

Definition Of Computer:

A computer is an electronic machine that receives information and data from input devices and processes them according to the given instructions to give output results or a computer is an electronic data processing machine.

Computer History:

First Generation Of Computer:

The period of this generation is from 1944 to 1959. In 1944, the vacuum tube was invented. It was used to make computers. Some of the first-generation computers include the Mark II and the UNIVAC-1.

Second Generation Of Computer:

The period of this generation is 1959 to 1965. Second-generation computers will use transistors instead of vacuum tubes. For this reason, second-generation computers are smaller in size. Second-generation computers include UNIVAC-II and IBM-1600.

Third Generation Of Computer:

This generation spans from 1965 to 1970. Integrated Circuits (ICs) are made using silicon. They are commonly called chips. The third generation was based on the IC.

Fourth Generation Of Computer:

The period of this generation is 1970 to 1986. Fourth-generation computers used microchip technology, combining more and more transistors on a single chip.

Fifth Generation Of Computer:

The duration of this generation is 1986 till now. Scientists are trying to integrate millions of transistors into a single chip. This was named Large Scale Integration (VLSI) or Ultra Large Scale Integration (ULSI). More than one processor is being used in a computer.