Characteristics of a Computer

Following are the important characteristics of a computer:

• Speed
  
• Accuracy
  
• Data storage
  
• Efficiency
  
• Automation

Speed: Computer is a very fast speed device. The speed of a computer is normally measured in milliseconds, microseconds, nanoseconds and pico seconds. Computer can do the amount of work in a few seconds that a human being does in an entire year.

Accuracy: Performing a task exactly as it was instructed is called accuracy. The accuracy of a computer is always high and the degree of accuracy of a particular computer depends upon its design. But for a particular computer, each and every calculation is performed with the same accuracy.

Data Storage: As human being acquire new knowledge, the brain subconsciously selects what it feels to be important and worth retaining in its memory and relegates unimportant details to the back of the mind or just forgets them

Efficiency: Efficiency is one of the most wonderful things about the computer. Computer can perform multiple tasks simultaneously. For example preparation of the result of examination, communicating on network and retrieval of information etc.

Automation: Computer can repeat any operation for more than once with a single instruction. Once instruction set is fed, then it can work automatically without the intervention of human being e.g ATM, which is used in banking for deposits and withdrawal of cash

Uses of a computer

There are some uses of computer which are as follows:

• We can store data in a computer and retrieve stored data when we needed.
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  We can send messages to our friends, relatives and family anywhere in the world by connecting computer with internet.
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  Defense department of a country relies heavily on computer technologies such as surveillance, firing of missiles etc.
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  Computer technology can be used in performing different routine tasks in offices.
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  Computer can play a vital role in the advancement of science and technology.
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  Computers are very helpful in academic and vocational trainings.
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  Students can prepare their projects, assignments and research thesis by using this device.
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  Computer aided learning cannot replace the teacher but it helps the students to get training whenever and wherever they want.
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  Medical Sciences and biotechnology are using computers to diagnose the diseases of patients in hospitals.
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  Computers can be used for recreational purposes such as playing games etc.
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  Marketing applications help managers to analyze and develop strategies.
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  Computerized banking provides several benefits such as save the time and convenience for customer.

What is Computer?

Definitions:
The "Computer" is derived from the word "Compute", which means to calculate. So a computer is normally considered to be a calculating device that can perform arithmetic and logical operations at a very fast speed.ORA Computer is an electronic device that can accept data, process it and give results after that processing and which can also communicate with the outer world.
Explanation:
The computer revolution is transforming the way we communicate, do business and learn. This technological revolution is having a profound impact on the business community and on our private and professional lives. Businessman is now relying on computer to keep the documents in soft form. In this way he is very comfortable to keep them where ever he go and confident on the reliability of documents. Document management systems are widely implemented in many multinational organizations to have a paperless environment. It lowers down the cost of doing business activities in the form of paper based files.