Pakexammcq, Author at Pak Exam MCQs

A. The Smart approach to using computers is to write programs
B. Hands-on exposure to the computer is not helpful to those who write programs
C. Personal computers have been an important contributing factor in the movement toward using computers without programming
D. Knowledge of the system development life cycle is not important to operators who use computers without programming

Answer & Solution

Option: C
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Which of the following does not describe one or more characteristics of a computer?

Pakexammcq Basic IT 0

A. Electronic
B. External storage
C. Stored program
D. Program modification at execution
E. All of the above are characteristics

Answer & Solution

Option: D
Explanation :Which of the following does not describe one or more characteristics of a computer the correct option is all of these. Computer is an electronic machine used to solve different problems according to a set of instructions given to it. A computer can accept data, process data into useful information and store it for later use. A computer derives its basic strength from speed, reliability, accuracy, storage, versatility, consistency, communication, recalling, control sequence and cost reductions.

I. Speed:-

Computer processes data at a very high speed. It is much faster than human beings. A computer can perform billions of calculations in a second. Computer speed is measured in Mega Hertz (MHz) or Giga Hertz (GHz).

II. Reliability:-

Computer is very reliable because in modern computer electronic components rarely break or fail.

III. Accuracy:-

Accuracy means that the computer provides results without any errors. Computer can process large amounts of data and produce results accurately. Computer result can be wrong only if the data given is not correct.

IV. Storage/Memory:-

Computer can store a large amount of data permanently or temporarily. People can use permanently stored data at any time. For example a computer can store thousands of books easily.

V. Versatility:-

Computer is a versatile machine so it can perform different types of tasks. That is why it is being used in every field of life. Computer is used in hospital, bank, office, and at home etc.

VI. Consistency:-

Computer works in a consistent way. It does not lose concentration due to heavy work. In other words, computer does not become tired or bored.

VII. Communication:-

Computer have capability to communicate with other computers. Therefore, these computers can share data, instructions, and information.

VIII Recalling:-

A. Most micros use rigid disk storage devices rather than floppy disk drives.
B. A minicomputer can have more processing capability than a mainframe model
C. A microcomputer chip performs the arithmetic-logic and control functions of a microcomputer
D. ROM chips may be used in micros to permanently store program instruction

Answer & Solution

Option: A
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