Generations of Computers With Full Explanation From Start To End

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		Generations of Computers
1st	Computers developed between 1946-1959, are the first generation of computer. They were large and limited to basic calculations. They consisted of large devices like the vacuum tubes. The input method of these computers was a machine language known as the 1GL or the generation language. The physical methods of using punch cards, paper tape, and magnetic tape were used to enter data in these computers.   Examples of the first-generation computers include ENIAC, EDVAC, UNIVAC, IBM-701, and IBM-650. These computers were large and very unreliable. They would heat up and frequently shut down and could only be used for very basic computations.
2nd	Computers developed between 1959-1965, the second-generation computers. These computers were reliable and in place of vacuum tubes, used transistors. This made them far more compact then the first-generation computers. The inputs for these computers were higher level languages like COBOL, FORTRAN, etc. In these computers, primary memory was stored on the magnetic cores and magnetic tape and they used magnetic disks as secondary storage devices.  Examples of the second-generation computers include IBM 1620, IBM 7094, CDC 1604, CDC, 3600, UNIVAC 1108. As a result, they worked on AC and therefore were faster than them predecessors.
3rd	Computers developed during the period of 1965-1971, the third generation of computers. These computers differed from the first and second generations simply by the fact that the new circuit element like IC’s (Integrated Circuits) was used. An integrated circuit is a small device that can contain thousands and thousands of devices like transistors, resistance and other circuit elements that make up computer.       Examples of the third-generation computers include IBM-360 series, Honeywell6000 series, PDP (Personal Data Processor), and IBM-370/168.
4th	Fourth generation of computers was between 1971-1980. These computers used the technology Very Large Scale Integrated (VLSI) circuits technology.  They were also known as microprocessors. Intel was the first company to develop a microprocessor. First “Personal Computer” or PC. Developed by IBM, belonged to this generation. VLSI circuits had almost about 5000 thousand transistors on a very small chip and were capable of performing many high-level tasks and computations. These computers were thus very compact and thereby required a small amount of electricity to run.    Examples are STAR 1000, CRAY-X-MP (Super Computer), DEC 10, PDP 11, CRAY-1. is generation of computers having the first “supercomputers” that could perform many calculations accurately. They were also used in networking and also used higher and more complicated languages as their inputs. The computer languages like languages like C, C+, C++, DBASE etc. were the input for these computers.
5th	This is the present generation of computers and is the most advanced one. The generation began somewhere around 1981 and is the present generation of computers. The methods of input include the modern high-level languages like Python, R, C#, Java etc. These are extremely reliable and employ the ULSI or The Ultra Large-Scale Integration Technology. These computers are the are the frontiers of the modern scientists' calculations and are used to develop the artificial intelligence all the components that will have the ability to think for themselves.  Examples include: Intel P 4, i 3 – i10, AMD Athlon, etc.  We have the most complete syllabus of quantitative aptitude in one place for you  Click Here to visit our website

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