Exam (elaborations) ICT

ICT QUESTIONS AND ANSWERS
1. Define the following used in computer science.

a) Data.-raw facts or figures that are input into a computer

b). Programs.-set of instructions that make a computer to perform a
specific task

c). Data processing.-process of collecting all items of data and
making them meaningful

d). Information.-processed data

2. (a) Briefly explain the two forms of data.

 Digital-data that is discrete in nature

 Analog-data that is continuous in nature

3. Give THREE differences between Data and Information.

 Data is meaningless to user, information is meaningful

 Data are raw facts or figures, information is processed data

 Data cannot be used in decision making, information can

 Data is disorganized, information is organized

4. The speed of a computer is measured in:
Fractions per second
5. What does the term GIGO stands for?

Garbage in garbage out

6. List and explain 4 silent features/ properties of a computer.

,  Speed-faster than human

 Accuracy-finds actual values

 Diligent-doesn’t get tired

 Versatile-used in different places

7. List FIVE advantages of a computerized system over a manual
system.

 Faster

 Accurate

 Versatile

 Consistent

 Diligent

8. List down the components that make up a computer.

a) System unit

b) Input devices

c) Output devices

d) Storage devices

9. What are computer peripherals?

Are devices connected to the system unit via ports.

10. (a) Name and explain the two main divisions of computer
storage.