Q.What is Computer?
Ans:- Computer is a high-speed electronic device, which is capable of performing logical and arithmetical operations. It accepts data as input from the user processes and gives desirable output.
In another word “computer is an electronic device which can store and retrieve information and perform mathematical and logical calculation.
Q. What advantages of Computer?
Ans.:-Computer has become the life-style of mankind because of its special features, which can be categorized as below:
(a) Speed: The first feature of computer is speed. It is a very fast device, which can perform any type of task in a fraction of seconds. When performing a particular task for hours together, it can maintain the same speed till the end of it. The speed of a computer can be measured in Pico seconds that is nothing but trillionth part of a second.
Mili second = 100th of sec.
Microsecond = 1 millionth of sec.
Nano Second = 1 billionth of sec.
Pico Second = 1000th of nano sec.
(b) Accuracy: The word accuracy means correctness of result. The accuracy with which a computer performs calculation or process data is very high. A computer never gives any wrong information unless and until the user does because a computer does all the operations using electroniccircuitry performing millions of operations every second. These circuits can run error free for hours together.
(c) Storage: Computer stores many of our records and files in its memory. We can easily retrieve our files & records from thecomputer.
(d) Versatility: A computer is popular today because it can performdifferent type of works like used for educational use, for research, in banks and railways, in film and animation making.
(e) Automation: A computer can perform a particular work continuously for hours together without any human intervention.
(f) Diligence: A computer does not suffer from the human traits of tiredness or bored. If 3 million calculations have to be performed, it will perform the 3rd million calculations with exactly the speed and accuracy asthe first one.
Ans.:-Computer has become the life-style of mankind because of its special features, which can be categorized as below:
(a) Speed: The first feature of computer is speed. It is a very fast device, which can perform any type of task in a fraction of seconds. When performing a particular task for hours together, it can maintain the same speed till the end of it. The speed of a computer can be measured in Pico seconds that is nothing but trillionth part of a second.
Mili second = 100th of sec.
Microsecond = 1 millionth of sec.
Nano Second = 1 billionth of sec.
Pico Second = 1000th of nano sec.
(b) Accuracy: The word accuracy means correctness of result. The accuracy with which a computer performs calculation or process data is very high. A computer never gives any wrong information unless and until the user does because a computer does all the operations using electroniccircuitry performing millions of operations every second. These circuits can run error free for hours together.
(c) Storage: Computer stores many of our records and files in its memory. We can easily retrieve our files & records from thecomputer.
(d) Versatility: A computer is popular today because it can performdifferent type of works like used for educational use, for research, in banks and railways, in film and animation making.
(e) Automation: A computer can perform a particular work continuously for hours together without any human intervention.
(f) Diligence: A computer does not suffer from the human traits of tiredness or bored. If 3 million calculations have to be performed, it will perform the 3rd million calculations with exactly the speed and accuracy asthe first one.
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