Nowadays, computers are making jobs easier for people.
Therefore, it is very necessary to have knowledge of Computer basics. In this article, we have covered all the basics of the computer such as what is a computer, definition of computer, basic functions of a computer, generations of computer, classification or types of computer, advantages and disadvantages of a computer, etc.
What is Computer
In 1640, the term ‘Computer’ was initially referred to as ‘ one who calculates ‘. Later in 1897, it was called the ‘ Calculating Machine ‘. In 1945, it was indicated as ‘ programmable digital electronic computer ‘ which is now called a ‘computer’.
What is Computer definition?
“ A computer is a programmable electronic machine designed to take input, perform prescribed arithmetic and logical operations at fast speeds, and provide the output of these operations. “
Basic Functions of Computer
There are four basic functions of the computer: Input, Processing, Output, and Storage.
Generations of Computer
There are five generations of the computer, which are listed below with approximate period:
First Generation (1946–1959)
- Electronic Valves (Vacuum Tubes).
— ENIAC, EDVAC, UNIVAC, etc.
Second Generation (1959–1965)
- Transistors.
— IBM 1620, IBM 1400 and 7000 series, CDC 3600, etc.
Third Generation (1965–1971)
- Integrated Circuits (ICs).
— IBM 360, IBM 370, PDP, etc.
Fourth Generation (1971–1980)
- Very Large Scale Integrated (VLSI) Circuits.
— DEC 10, STAR 1000, CRAY-1 and CRAY-X-MP, etc.
Fifth Generation (1980 — Present)
- Ultra Large Scale Integration (ULSI), Artificial Intelligence (AI) and Parallel Processing Hardware.
— Desktop, Laptop, NoteBook, ChromeBook, and UltraBook, etc.
Uses of Computer
Here, we have explained the most important uses of the computer system:
* can store important data.
* can communicate with people around the world.
* used for the educational system.
* used for office works like data entry, support, development, etc.
* used in banking, finance, and marketing.
* used in government sectors.
* used in sports.
* used for Press and publishing.
* used for entertainment.
Classification of Computer
According to usage and functionalities, computers can be classified as:
Analog Computer
Digital Computer
Hybrid Computer
Types of Computer
Supercomputer
Mainframe Computer
Microcomputer
Mini Computer
Advantages and Disadvantages of Computer
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