Generation of Computers.


 first generation of computer.

The first generation of computers is generally known as electromechanical computers or using vacuum tubes. For example, ENIAC has used Vacuum tubes, relied on Machine Language and Boolean logic. A computer using vacuum tubes is very slow in executing programs compared to present-day computers.

Second generation of computer.

The second generation of computers consists of two types of devices, transistors, and magnetic core. The transistors helped to develop a better computer than the first generation computers consisting of vacuum tubes. Some second generation of computers are IBM 1920, IBM 7094, CDC 1604, CDC 3600, IBM 1401, etc.

Third generation of computer.

The third generation computer was started in 1965 and ended around 1971. Third generation computers start using integrated circuits instead of transistors. The integrated circuit (IC) is a semiconductor material, that contains thousands of transistors miniaturized in it.

Fourth generation of computer.


Fourth Generation of computers was between 1971 – 1980. These computers used the VLSI technology or the Very Large Scale Integrated (VLSI) circuits technology. Therefore they were also known as the microprocessors. Intel was the first company to develop microprocessoror.

Fifth generation of computer.


The fifth generation of computers are IBM SP/2 notebooks, Pentium PCs, SUN workstations, IBM SP/2 desktops, and PARAM supercomputers. The hardware restrictions predicted in the 1980s were finally reached in the 2000s, leading to a reinterpretation of many of the topics from the fifth generation of computer project.