About Computer Generations

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Pc is an electronic device utilized to accept the data in the form of digitalized (binary and 1) to perform some job based on the sequence of directions program. 5 generations of computers,

Very first generations of computers (1940-56) operated in vacuum tubes. Computers use the vacuum tubes for circuitry and magnetic drums for memory. The drum rotates at a speed of 3000 rpm. This pc is pretty expensive to operate and it wants more electric energy and it produces a lot of heat. First generations of laptop or computer understood machine level language, lowest level programming language to perform the operation. Input of the program is punched cards and paper tape and the output was displayed only on printers.

Disadvantage,
It demands extra space
Particularly highly-priced to operate
It requirements more energy

Second generation personal computer (1956-63) transistors replace the vacuum tubes. Transistors are devices that consist of semiconductor material that amplify the signal. Transistors remove the disadvantage of vacuum tubes (i.e.) big, heat, energy. The transistors was a superior to the vacuum tubes, allow computers become small, quicker, less expensive, trustworthy, effective. This personal computer understood only assembly or symbolic high level language. The high level language such as COBOL, FORTRAN.

Advantage
Little
Faster and trustworthy
Low cost and effective

The third generation of computer (1964-71) integrated circuits. In this laptop or computer instead of punch cards, printouts, user interact by way of keyboards, monitors and infrared with operating program, which enable the technique run a a large number of application at a time. Computers chips for both CPU and memory are composed of semiconductor supplies.

Advantage
It is rather speed
Tiny and dependable

The fourth generation of pc (1971-at present) microprocessor. Microprocessor consists of thousands of integrated circuits. Intel 4004 chip developed in 1971 situated all the components of computers from the CPU and memory. There are two components in CPU that are arithmetic logic unit, control unit. This modest computer became a lot more potent and also getting GUI, mouse and handheld devices.

Advantage
Modest size
More dependable
Uncomplicated to use

The fifth generation of personal computer (Present and Beyond) artificial intelligence. All the devices based on artificial intelligence, are nonetheless in development, through some applications, such as voice recognition, that are getting used at present. Parallel processing, super conductor are utilised to make the artificial intelligence. The goal of fifth generation computers is to create that respond to natural language input and capable of studying and self organisation.

Advantage
Quick to access
Effortless to use
Small size