Characteristics of computers

Some important characteristics of computer are listed below:
1. Automatic: an automatic machine works by itself without human intervention. Computers are automatic machines because once started on a job. They carry out the job (normally without any human assistance) until it is finished. However, computers being machines cannot start themselves and cannot go out and find their own problems and solutions we need to instruct a computer using coded instructions that specify exactly how it will do a particular job. Some of the other characteristics of computer (such as speed and accuracy) are because they are automatic and work on a problem without any human intervention.
2. Speed: a computer is very facts device. It can perform in a few seconds, the amount of work that a human being can do in an entire year- if he/she worked day and night and did nothing else. In other words. A computer can do in a few minutes what would take a man his entire lifetime.
3. Accuracy: in addition to being very fast, computers are very accurate. Accuracy of a computer is consistently high and the degree of its accuracy depends upon its design. A computer performs every calculation with the same accuracy.
4. Diligence: unlike human beings a computer is free from monotony, tiredness, and lack of concentration. It can continuously work for hours without creating any error and without grumbling. Hence, computer scorer over human beings in doing routing type of jobs that requires great accuracy. If ten million calculations have to be performed, a computer will perform the last one with exactly the same accuracy and speed as the first one.
5. Versatility: versatility is one of the most wonderful things about a computer. One moment it is preparing results of an examination, next moment it is busy preparing electricity bills and in between, it may be helping an office secretary to trace an important letter4 in seconds.
6. Power of remembering: as a human being acquires now knowledge, his/her brain subconsciously selects what it feels to be important and worth retaining in memory
7. No I.Q.: a computer is not a magical device. Its possesses no intelligence of its own. Its I.Q. is zero.
8. No feelings: computers are devoid of emotions. They have no feelings and no instincts because they are machine.