two paragraph on uses of computer word limit 100 to 150 words
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Computer is a modern tool which has made life very easy and simple. It has capability to complete more than one task in small time. It is able to do work of many human beings alone within less time. It is the utility of highest efficiency. The first computer was a mechanical computer which was created by the Charles Babbage. A computer works successfully using its hardware and fully installed application software. Other accessories of the computer are keyboard, mouse, printer, CPU and UPS.
The data which we put into the computer using device is called input data and device as input device and data which we take outside using printer or other device is called as output data and device as output device. The input data gets changed into the information which can be stored and changed anytime. Computer is very safe tool for data storage which is being used in various fields. We can shop, pay our electricity bill, water bill, video chat, messaging, e-mail messages anywhere in the world and lots of online activities using internet.
The data which we put into the computer using device is called input data and device as input device and data which we take outside using printer or other device is called as output data and device as output device. The input data gets changed into the information which can be stored and changed anytime. Computer is very safe tool for data storage which is being used in various fields. We can shop, pay our electricity bill, water bill, video chat, messaging, e-mail messages anywhere in the world and lots of online activities using internet.
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A computer is a machine (mostly electronic) that is able to take information (input), do some work on or make changes to the information (process), to make new information (output). Computers have existed for much of human history. Examples of early computers are the astrolabe and the abacus. There are four main processing steps in a computer, and they are: inputting, outputting,storage and processing.
Modern computers are very different from early computers. They can do billions of calculations per second. Most people have used a personal computer in their home or at work. Computers do many different jobs where automation is useful. Some examples are controlling traffic lights, vehiclecomputers, security systems, washing machines and digital televisions.
A computer user can control it by a user interface. Input devices include keyboard,mouse, buttons, and touch screens. Some very new computers can also be controlled with voice commands or hand gestures or even brain signals through electrodes implanted in the brain or along nerves.
Computers can be designed to do almost anything with information. Computers are used to control large and small machines which in the past were controlled by humans. They are also in homes, where they are used for things such as listening to music, reading the news, and writing.
Modern computers are electronic computer hardware. They do mathematical arithmeticvery quickly but computers do not really "think". They only follow the instructions in their software programs. The software uses the hardware when the user gives it instructions, and gives useful output.
Computer programs are designed or written by computer programmers. A few programmers write programs in the computer's own language called machine code. Most programs are written using aprogramming language like C++, Java, andFortran. These programming languages are more like the language you talk and write with every day. The computer translates the user's instructions into binary code (machine code) that the computer will understand and do what is needed.
Modern computers are very different from early computers. They can do billions of calculations per second. Most people have used a personal computer in their home or at work. Computers do many different jobs where automation is useful. Some examples are controlling traffic lights, vehiclecomputers, security systems, washing machines and digital televisions.
A computer user can control it by a user interface. Input devices include keyboard,mouse, buttons, and touch screens. Some very new computers can also be controlled with voice commands or hand gestures or even brain signals through electrodes implanted in the brain or along nerves.
Computers can be designed to do almost anything with information. Computers are used to control large and small machines which in the past were controlled by humans. They are also in homes, where they are used for things such as listening to music, reading the news, and writing.
Modern computers are electronic computer hardware. They do mathematical arithmeticvery quickly but computers do not really "think". They only follow the instructions in their software programs. The software uses the hardware when the user gives it instructions, and gives useful output.
Computer programs are designed or written by computer programmers. A few programmers write programs in the computer's own language called machine code. Most programs are written using aprogramming language like C++, Java, andFortran. These programming languages are more like the language you talk and write with every day. The computer translates the user's instructions into binary code (machine code) that the computer will understand and do what is needed.
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