![generation of computer table chart generation of computer table chart](https://upload.wikimedia.org/wikipedia/en/timeline/6fgqw6xgpp93ji47qscvwn560an86vu.png)
Second generation computer replaced machine language with assembly language, allowing abbreviated programming codes to replace long, difficult binary codes. The example of first generation computers is ENIAC, UNIVAC,EDVAC, and EDSAC. It could only perform straight forward simple numerical calculation.Power consumption was very high and it generated much heat.It occupies very large space, slow processing, inefficient and unreliable due to low accuracy.Punched card, printing devices were used for input/output operations and store the result.Electrostatic tubes, Parer tape, punch card, magnetic tape.Magnetic core memory was used as primary memory.Machines languages were used to instruct the computer.Afterward, assembly languages were developed and used in first generation computer. The programming of first generation computers was done in machine languages (0s and 1s). In the first generation computer, vacuum tubes as CPU, magnetic drum for data storage, and machines languages were used for giving instruction.The computer of this generation was very large in size called room-sized computers. It was operated on the ' Principle of Thermionic Emission". Fifth Generation Computer (Present and future)ġ.) First Generation Computer (1945-1955) Fig: First Generation Computer source: įirst generation computers were characterized by the fact that operating instructions were made to order for the specific task for which the computer was to be used.Fourth Generation Computer (1972 onward).The classification and time periods are given below:
![generation of computer table chart generation of computer table chart](http://1.bp.blogspot.com/--Tp6QGndvpo/UJdkVCA7pII/AAAAAAAAGZ0/_3bG5-ZT4vs/s1600/Generation%2BTable.jpg)
Based on the period of development and the features incorporated, the computers are classified into different generations- First generation to Fifth generation. The function performed by the computer and the speed of their operations have been changing since the old days to the most modern computer. Also, the considerations are the architecture, languages, modes of operation, etc. Generation of Computer and Their Features GENERATIONS OF COMPUTERSĬomputer generations classification is mainly based on the basic devices used.