Advantages of Using Computer:
The usage of computer gives following advantages in comparison to manual.
Speed:
The speed of carrying out the given instruction logically and numerically is incomparable between a computer and human being.
Computer can perform and give instructions in less than a millionth of a second. The speed of the computer is specified in terms of Nano seconds and in Pico seconds, whereas human beings require most time to perform these functions.
Accuracy:
Computer calculates very accurately and computer never does mistake, although we often hear about the false results of computers. This may be due to the error in data entry or due to poorly designed program. Since, human beings do data entry and programming; hence, the error may make the results false. Otherwise, computer never does mistake. It works on the principle of “Garbage In, Garbage Out”.
Versatility:
Previously, the computer was thought of as only a calculating machine, but a computer can also carry out logical operations. Any job can be computerized with the help of appropriate software. Limited sets of instructions are enough to carry out a computer processing.
Generally, the use of computer is restricted to typing and storage of information, in most of the business organizations. This may be due to the lack of complete knowledge regarding the use of computer on the part of the user.
Reliability:
The information stored in a computer is in digital forms. The information can be stored for long time and have long life. If maintained properly, at least data processing and storage components are guaranteed for several years. A user may feel comfortable and be reliable, while using information stored in a computer.
Previously, a digital form of information was not accepted in Government departments and the information stored in the floppies was not accepted in the court as evidence. However, after the establishment of Ministry of Information Technology by Government of India, efforts are taken by the Government to provide the legal status to the information stored in the digital form.
Storage:
Human brain can store a piece of information to some limitation of numbers and up to some extent of time. When he is asked to reproduce the information after a long period, he may find himself in a difficult situation to recall the information. Human being generally distorts the information.
Automatically:
A computer performs automatically in a user-friendly and menu-driven program. Electronic equipment like tape recorder, television, and calculator, VCR etc. can be operated with basic knowledge of operation. In the same manner, with some basic know-how technique, a computer can be operated.
Compactness:
Now a day, the size of the computer has reduced drastically. The modern computers are laptop and tabletop computers. They do not occupy more space. Moreover, laptop has provided mobility to the computer. Now we can carry a computer with us and through remote accessing, we may be in touch with our office.
With the advancement of technology, the benefit of this device has been multiplied. Internet and video conferencing facilities have made it possible for the business executives to control, direct, and monitor the functioning of the office even when they are not present in the office.
Repetitiveness:
Computer can be used repetitively to process information. It does not feel mental fatigue as in case of human being. There will be no difference in the speed and accuracy of the information presentation if a computer operates continually, even for 1, 2 or any number of days. We can understand the importance of the unique features when company is sending information to its shareholders.
Generally, the number of shareholders in any company is very large. To send the information to them manually is very tire some and time-consuming. However, through mail merging, thousands of letters can be prepared and dispatched in a day.
Diligence:
A computer is an electronics device. It does not suffer from the human traits of lack of concentration. So, the results will be continuously of the same standard.
No Feelings:
Computers are devoid of emotions. They have no feelings and no instincts because they are a machine. Although men have succeeded in building a memory for the computer, but no computer possesses the equivalent of a human heart and soul.
Based on our feelings, taste, knowledge and experience, we often make certain judgments in our day-to-day life. But computers cannot make such judgments on their own. Their judgment is based on the instructions given to them in the form of programs that are written by us. They are only as good as man makes and uses them.
Disadvantages of Using Computer:
Lack of common sense:
Computer is only an electronic device. It cannot think. If we provide an incorrect data, it does not have the commonsense to question the correctness of the data. For overcoming this problem, several Software Specialists are engaged in the project of developing intelligence to the computer. To it, they have given name as Artificial Intelligence. They are willing to develop the feeling and inhumation in this device.
We hope that in the near future, the artificial intelligence will help this device to function in a more interactive way. Today, softwares are available which may convert our speech into text. This is the beginning of an era where computer may be quite interactive with human beings. In addition, to execute the function, the operator will give verbal instructions.
Memory without brain:
Computer can store data in its memory. However, if a wrong instruction is provided, it does not have a brain to correct the wrong instructions.
Slavery:
A computer is a slave; it cannot execute the program by itself. It requires instructions to execute the program and generate information. Thus, we see that the computer cannot do anything by itself. It has a relationship of master and slave. Until master is not instructing, slave will not perform any function. In the same way computer does.
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