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The first computer systems used vacuum tubes for circuitry and magnetic drums for main memory,
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The transistors was invented in 1947 but did not see widespread use in the computers in 1950, his function was replace vacuum tubes and ushered in the second generation of computers -
The UNIVAC was created and he was the first commercial computer delivered to a business client in 1951 -
Though the transistor still generated a great deal or heat that subjected the computer to damage, it was a vast improvement over the vacuum tube
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Second generation has binary machine language to symbolic
Early versions of COBOL and FORTRAN these was the first computers that stored their instructions in their memory -
The first computers of this generation were developed for the atomic energy industry -
The development of the integrated circuit was the hallmark off the third generation of computers. -
In the third generation the users interact with keboards and monitors and interfaced with an operating system. -
The Microporocessor bought the fourth generation of computers, as thousands of integrated circuits were built onto a single silicon chip -
In 1981 IBM introduced its first computer for the home user
In 1984 Apple introduced the Macintosh -
Fifth Generation computing devices, based an artificial inteligence, are still in development -
The goal fifth-generation computing is to develop devices that respond to natural language input and are capable of learning and self-organization