What is a computer and what is its specialty?

Computer has become a significant piece of our life. It is used daily from school to office. And computers are also being used a lot in homes for handling daily work.

So we all should introduce computers well. Only then can we succeed in using this electronic device properly. In addition, important questions related to computers are also asked in competitions. Due to this, it is important to have basic knowledge of the computer.

As soon as you hear the name of computer, hundreds of thoughts start coming to mind. Because Computer can do hundreds of activities alone. Yes, hundreds! You read it right and that too together. Tying a computer into words is a bit difficult. This is because every person uses the computer for different tasks.

There is also a common belief about computers that Computer is an English word. Computer meaning in Hindi is “Count”. This means that the computer is a calculator. However, it would be wrong to call a computer a connecting machine. Because in addition to connecting the computer, hundreds of different functions.

If you ask a writer / typist what is a computer? So he might say that computers are a type machine. Similarly, if we asked a child playing a game, he might say that a computer is a game machine. If you ask the computer operator, he will try to define it in terms of the machine handling the office.

Therefore, we can say that computer cannot be tied in any one sense. The meaning of computer is different for each person depending on its usage.

Computer Definition

“A computer is a machine that performs tasks according to certain instructions. To say more, a computer is an electronic device that accepts data with the help of input devices, processes them and provides those data in the form of information with the help of output devices”.
It is clear from this definition that the computer takes some instructions from the user first which are entered with the help of various input devices. Those instructions are then processed, and finally returns the results based on the instructions, which are displayed with the help of output devices.

Instructions include several types of data. like; Numbers, alphabet, figures etc. According to this data, the computer makes the result. If the computer is given the wrong data, then the computer also gives the wrong result. This means that the computer works on the rule of GIGO – Garbage in Garbage Out.

Full form of Computer 

Even today, because of being a very useful machine, computers have not been able to bind a computer to a definition. In this link, the full name of the computer is also discussed. Which different people and institutions have interpreted differently based on their experience. However, none of these is Standard Full Form. We have given below the full form of a computer for you. Which is quite popular and expressive.
C – Commonly, O – Operated, M – Machine,  P – Particularly, U – Used for , T – Technical , E – Educational and R – Research.

Characteristics of Computer 

The computer has captured most of the work that we humans do and has given the man more work capacity than his capacity. All this is possible due to the special properties of computer machines. That’s why we humans are making computers a part of our lives. Some of the special features of a computer are as follows.

1. Speed 

1. 1. Computers work very fast.
   2. It can process millions of instructions in just one second.

1. 1. The computer’s data processing speed is measured in microseconds (10–6), nanoseconds (10–9) and picoseconds (10–12).

1. 1. Typically the speed of a unit of the processor is tens of millions of instructions per second, ie MIPS (Millions of Instructions Per Second).

1. This machine has been built to work at a rapid pace.

2. Accuracy 

1. 1. The computer works on the principle of GIGO (Garbage in Garbage Out).

1. 1. The results produced by it remain impeccable. If an error occurs in a result, then it is based on human intervention and the instructions entered.

1. The accuracy of its results is much higher than the human results.

3. Diligence

1. 1. Computers are a fatigue free and hardworking machine.

1. 1. It can perform its work smoothly with equal purity without stopping, tired and boredom.

1. It fulfills the first and last instructions with equal concentration, focus, hard work and purity.

4 . Versatility

1. 1. Computers are a multi-purpose machine.

1. 1. In addition to computing, the computer is capable of many useful functions.

1. Through this, we can do all the necessary work like typing, documents, reports, graphic, videos, emails etc.

5 . Automation

1. 1. Computers are also an automatic machine.

1. 1. It can complete many tasks without human intervention.

1. Automation is very important

6 . Communication

1. 1. A computer machine can also interact with other electronic devices.

1. Through this network, you can easily exchange your data to each other.

7 . Storage Capacity

1. 1. The computer has very large memory.

1. 1. The results produced in computer memory, instructions received, data, information and all other types of data can be stored in various forms.

1. 1. Storage capacity avoids duplication of computer work.

8 .Reliability

1. 1. It is a reliable and reliable machine.

1. 1. It has a long life.

1. 1. Its assistive devices can be easily turned and maintained.

9. Nature Friendly

1. 1. Computers do not use paper to do their work.

1. 1. Even for storing data, paper documents do not have to be made.

1. 1. Therefore, computers are indirectly the protectors of nature. And this also reduces the cost.

Limitations of Computer

1. 1. A computer is a machine that we humans have to depend on to do our work. As long as there are no specific entries in it, it cannot produce any result.

1. There is no discretion in this. These are intelligent machines. It does not have the ability to think and understand. But at the present time, the ability of thinking and reasoning of computers is being developed by Artificial Intelligence.

Needs clean environment to make it work. Because its functionality is affected in a dusty place. And it can also stop working.

History of Computer

Modern computers are the result of history. Which started in BC. When the Chinese invented the abacus. After this various types of automatic machines came into existence. And the automatic engine made by Charles Babbage became the basis of today’s computers.

The history of computers is full of similar ups and downs. Which are summarized below.

• Abacus was the first calculating machine in the world by which normal calculations (add, subtract) could be done.
• Abacus was invented around 2500 years ago (its exact time is not known) by Chinese.
• This device remained the only gun to be gunned until the 17th century.
• In 1017 John Napier mentioned his mathematical tools in his book “Rabdology”. Named “Napier’s Bones”. This device was used to calculate the products and find the quotient. The method used to perform the calculations in this device was called ‘Rebology’.
• Addition, subtraction, multiplication, division can also be done by this device.
• A few years after John Napier’s invention (around 1620), the Honorable William Oughtred invented the “Slide Rule”.
• By this, calculations like multiplication, division, square root, trigonometry could be done. But less used for addition and subtraction.
• In 1642, at the young age of 18, Math created the first practical mechanical calculator by a French scientist and philosopher.
• The name of this calculator was “Pascalin”.
• By which calculations could be done.
• Then in 1671, an advanced machine named Step Reckoner was invented, reforming Pascalin. In addition to adding, subtracting, could also do multiplication, division, square root.
• This machine, developed by Gottfried Wilhelm Leibniz, also had storage capacity.
• The Binary System was also developed by them. In 1845, an English mathematical branch named ‘Boolean Algebra’ was invented by an Englishman George Boole.
• Modern computers rely on this binary system and the Bullyin algebra to process data and perform logical tasks.
• In 1804 Joseph-Marie-Jacquard, a French weaver, made a handloom. Whose name was ‘Jacquard Loom’.
• It is considered the first ‘information-processed’ device.
• And the invention of this device proved that machines could be operated by machine code.
• In 1820, Thomas de Colmar of France created a new calculating machine called “Arithmometer”.
• By which the four basic functions of mathematics could be added, subtracted, multiplied, divided.
• But due to World War II, the development of this machine stopped.
• In 1822, the father of modern computers, the Honorable ‘Charles Babbage’ invented an automatic mechanical calculator to tabulate the “polynomial function”.
• The name of this calculator was “Difference Engine”.
• It was driven by steam and its size was very large.
• It had the ability to store, calculate and print programs.
• In 1833, “Analytical Engine” was designed after about a decade of this engine.
• This engine is considered to be the initial format of modern computers. That’s why “Charles Babbage” is called the father of the computer.
• This machine had all the things that are in a modern computer.
• In Analytical Engine, Mill (CPU), Store (Memory), Reader and Printer (Input / Output) were working.
• Now the foundation of modern computers had been laid.

Generation of Computer

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