What is Computer
Nowadays computer is being used in every region of the world like- space, film production, airport, hospital, traffic, industry, business, railway station, school, college etc. Today every work is being done with accuracy and speed by computer. Today computer has become an integral part of our life, and computer is also a part of our daily routine. It is an electronic machine which completes the task according to certain instructions.
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| Computer |
A computer is one that accepts data with the help of input devices, processes them and provides those data to us in the form of information with the help of output devices. Conducts procedures, calculations based on instructions given by computer software or hardware programs. This application is designed to execute. So let's tell you what is a computer? And who invented computer? Was.
What is Computer
The word computer is derived from the word "Compute" in the English language, meaning "to compute", which was used to do computer invented calculations, in the olden days computers were used only for calculating. But today computers are being used for making documents, sending and receiving e-mails, watching and listening to music, entertainment, playing games as well as other things like - in banks, in educational institutions, in offices, Computers are being used in homes, shops etc.
The computer only does the work that we ask it to do, that is, only the computer follows the commands that are already inserted inside the computer, the computer does not have the ability to understand and think. We can easily do many of our tasks sitting at home through computer.
Computer Full Form - Common Operating Machine Particularly
Used In Technology Education And Research
The computer was invented by Charles Babbage, Charles Babbage is called the father of computer (Computer Ke Janak). Charles Babbage was an English scholar. He was a mathematician, philosopher, inventor and mechanical engineer who is currently remembered for conceptualizing the best computer programs.
He did Computer invented around 1822. Charles Babbage built the first automatic computing machine in 1822. This machine used to do a limited type of calculation and gave its result in hard copy form. Charles Babbage could not work further on this machine due to lack of money.
HISTORY OF COMPUTER
The history of computers is very old. About 3000 years ago a strange calculating device called Abacus was invented, it is believed that this device was invented in China. There were many sticks in the instrument called abacus, some of which were in the shape of shells. Through which addition and subtraction was done. But the work of multiplication and division could not be done by Abacus.
It has been difficult for humans to calculate from the beginning, any person can calculate only to a limited level without a machine, and to make a big calculation, a human has to depend on the machine, so man has to calculate Computer invented did it.
Computer Generations
The computer has evolved over five generations, with the first electronic device in 1946 containing a vacuum tube. This was the basis for the development of computers. With the help of many devices in the development of computers, the computer has made this journey since then till date and in this sequence various changes were seen in Computer generations.
First Generation Computer - 1940-1956
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| First Generation |
Vacuum Tubes - In the first generation of computers, the use of vacuum tubes to control electronic signals was first realized by them. These computers were larger in size and produced more heat and were more prone to wear and tear. Its ability to compute was also very low and the first generation computers occupied more space. The first generation computer was about the size of a room
Second Generation Computer - 1956-1963
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| Second Generation |
Transistors - In the second generation transistors were invented, transistors were used simultaneously in computers of this generation, which were more efficient and cheaper than vacuum tubes. In this generation, transistors were used in place of vacuum tubes. The size of the transistors is much smaller than that of vacuum tubes, which reduced the size of computers and made them more efficient to calculate.
Third Generation Computer - 1964-1971
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| Third Generation |
Integrated Circuits - Technological efforts were made to further reduce the size of the computer, which resulted in the use of integrated circuits (IC) on silicon chips that were used in computers. As a result of which it was possible to make the smallest size of the computer so far, it ranged from micro seconds to nano seconds, which was possible by a small scale integrated circuit.
Fourth Generation Computer - 1971-1985
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| Fourth Generation |
Fifth Generation Computer - 1985 - THAT TIME
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| Fifth Generation |
Artificial Intelligence - The fifth generation of computers is based on artificial intelligence, which is the next generation of computers that are still in operation and have been successful to some extent, such as computers based on artificial intelligence. These types of computers will be able to do all the work themselves, we can see such computers in robots, and many different types of machines which will be able to do more work than humans.
Types of Computer
Since the arrival of the first computer, various changes have been observed in the present-day computer, there are mainly four types:- Super computer
- Mainframe Computer
- Mini Computer
- Microcomputer
- Super computer
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| Super Computer |
When it comes to performance and data processing, the most powerful computer in this case is the supercomputer. It is specialized and work specific computers that are used by large organizations. Supercomputers are used for research and exploration purposes, such as - NASA uses supercomputers for launching, controlling, and space exploration purposes.
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Mainframe computer
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| Mainframe Computer |
Mainframe computers are not much more powerful than supercomputers, but they are quite expensive. They are used by many large firms and government organizations to conduct their business. Being larger in size, mainframe computers are kept in air-conditioned rooms. The data storage capacity of a super computer is very large, due to which it is the fastest working computer. It can also process and store large amounts of data. Bank educational institutions and insurance companies use mainframe computers to store data about their customers, students and insurance policy holders.
- Mini computer
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| Mini Computer |
Mini computers are used by small businesses and firms. They are very small and can be accommodated on disk. They do not have the ability to store data as much as super computers and mainframe computers. These computers are not designed for a single user. They are used for specific purposes in individual departments of a large company or organizations, such as a production department may use mini-computers to monitor certain production processes.
- Microcomputer
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| Micro Computer |
