Question

Consider the following scenarios.

Scenario 1: Raymond communicates with the computer by typing specific commands
to get some tasks done.
Scenario 2: Mary communicates with the computer by using the mouse to click on a
picture on the screen representing the task she wants to do.
Scenario 3: The cashier communicates with the computer by touching pictures on the
screen representing items being sold in the store.
(i) Identify the type of user interface indicated in
Scenario 1:
Scenario 2:
(ii)
Scenario 3:
Name the type of software which provides the user interface.
****************************
(iii) State the scenario number which indicates a hardware interface.
(3 marks)
(1 mark)
(1 mark)
Total 10 marks

Answer 1

Explanatio(i)

Scenario 1: Command Line Interface (CLI)

Scenario 2: Graphical User Interface (GUI)

Scenario 3: Touchscreen Interface (TSI)

(ii)

The type of software which provides the user interface varies for each scenario:

Scenario 1: Command-line shell or Terminal Emulator

Scenario 2: Window Manager and Desktop Environment

Scenario 3: Point of Sale (POS) Software

(iii)

There is no scenario that indicates a hardware interface. The scenarios describe different types of user interfaces, which are software-based, rather than hardware-based.