Majority of the candidates attempted this question and their performance was very poor because they had little knowledge about the computer and its terminologies.
Q1(a) Computer Error
A computer error is an inaccurate output from a computer system. When the result displayed by a computer, consequent upon the processing of a given data, is wrong or does not conform with the expected outcome, a computer error is said to have occurred.
Error from a computer may be software error or hardware error.
(b) Garbage-In, Garbage-Out
This means that whatever one feeds into the computer, either correct or incorrect, is exactly what would be processed and produced as output. Since the computer cannot think, it acts on whatever instructions or data that are fed into it. Therefore, the concept of garbage-in, garbage-out stresses the fact that if rubbish is fed into the computer as input, rubbish would be received as output information.
(c) Down-time
This is the term used to describe the interval of time within which the computer is not in an operatable condition. It marks the period when the computer breaks down and becomes impossible to operate.
(d) Debugging
Debugging, is the process of detecting, tracing and eliminating errors in a computer program by the programmer.
(e) Computer Service Bureau/Cyber-Cafe
This is a business organization with computer facilities that renders data processing services to other companies and individual members of the public. The company charges fees for services so rendered.
