What is a Computer | Advantage of computer

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basic of computer

COMPUTER BASIC





Introduction...

The literal meaning of computer is a device that can calculate. However, modern computers can do a lot more than calculate. Computer is an electronic device that receives input, stores or processes the input as per user instructions and provides output in desired format.

           Being a modern-day kid you must have used, seen, or read about computers. This is because they are an integral part of our everyday existence. Be it school, banks, shops, railway stations, hospital or your own home, computers are present everywhere, making our work easier and faster for us. As they are such integral parts of our lives, we must know what they are and how they function. Let us start with defining the term computer formally.



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COMPUTER

           A computer is a programmable electronic device that accepts raw data as input and processes it with a set of instructions (a program) to produce the result as output. It renders output just after performing mathematical and logical operations and can save the output for future use. It can process numerical as well as non-numerical calculations. The term "computer" is derived from the Latin word "computare" which means to calculate.

           A computer is designed to execute applications and provides a variety of solutions through integrated hardware and software components. It works with the help of programs and represents the decimal numbers through a string of binary digits. It also has a memory that stores the data, programs, and result of processing. The components of a computer such as machinery that includes wires, transistors, circuits, hard disk are called hardware. Whereas, the programs and data are called software.

Advantages of computer

  1. High Speed

    • The computer is a very fast device.
    • It can perform the calculation of a very huge amount of data.
    • The computer has units of speed in a microsecond, nanosecond and even the picosecond.
    • It can process millions of computational calculations in a fraction of seconds. unlike the man who may spend many months performing the same task.

  2. Accuracy

    • In addition to being very fast, computers are very accurate.
    • The calculation are 100% error-free.
    • Computer perform all jobs with 100% accuracy provided that the input is correct.

  3. Storage Capability

    • Memory is a very important characteristic of computers.
    • A computer has much more storage capacity than human beings.
    • It can store a large amount of data.
    • It can store any type of data such as images, videos, text, audio etc.

  4. Diligence

    • unlike human beings, a computer is free from monotony, tiredness, and lack of concentration.
    • It can work continuously without any error and boredom.
    • It can perform repetitive tasks with the same speed and accuracy.

  5. Versatility

    • A computer is a very versatile machine.
    • A computer is very flexible in performing the jobs to be done.
    • This machine can be used to solve problems related to various fields.
    • At one moment, it may be processing and simplifying a complex scientific problem, and the very moment it may be running a card game.

  6. Reliability

    • A computer is a reliable machine.
    • Modern electronic components have long lives.
    • Computers are designed to make maintenance easy.

  7. Automation

    • A computer is an automatic machine.
    • Automation is the capability due to which a machine can perform its task without the need for human consideration. Once the program is fed to the computer i.e., the program and instruction can be executed in absence of human consideration.

  8. Reduction in Paperwork and Cost

    • With the help of computers for data processing in an organization, there is a reduction of paperwork and results in speeding up the process, which in return saves trees.
    • Bacause data saved as electronic files can be retrieved whenever required, the headache of maintaining piles of paper files gets reduced.
    • While the investment at the beginning for the installation of a computer is high, it substantially reduces the cost of each of its transactions.

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