Question 1:

a) What is the difference between a non-impact and impact printer?

b) Which type of printer is generally used in a supermarket to print your receipt? Describe the reason for this choice?

c) Differentiate between application software and system software.

d) List tasks that are commonly performed by an operating system.

Question 2:

a) Describe the term ‘Database Management System'.

b) Differentiate between a primary and a foreign key. Provide an appropriate example to illustrate your answer.

c) What are the basic benefits of using a relational database management system?

Question 3:

It is decided to implement a software solution in your organization. However, the manager could not decide whether to develop the software by a local firm or to purchase a ready-made software package.

To help the manager, you are required to elaborate on FIVE advantages and FIVE disadvantages of buying a pre-written software package as compared to having one developed by a local software development company?