Computer Applications
Graphical user interfaces (GUIs) are found on many computers' operating systems.
(a) Why do computers need a user interface ?
(b) Give one input device, other than a keyboard, that can be used with a graphical user interface.
(c) Give four features of a graphical user interface.
Answer
(a) A user interface provides a way in which an operating system interacts with its users. A user interface makes computers accessible, user-friendly, and efficient. They enable users to interact with computers in a more natural and intuitive way, facilitating a wide range of tasks and applications for various types of users.
(b) Mouse is used with a graphical user interface to point, click, drag, and interact with graphical elements on the screen, making it a fundamental input device for GUI-based systems.
(c) The four features of a graphical user interface are as follows: —
- Windows — one can move around the screen
- Icons — one can click on to load programs and files
- Menus — offer options to choose from
- Pointers — one can move around the screen.
Related Questions
Why do you need to install device driver every time you attach a new hardware device with your computer ?
Describe four tasks that are carried out by an operating system.
(a) The operating system of modern computers has progressed from a command-driven system to a graphical user interface (GUI). Describe three advantages to the user of using a graphical user interface rather than a command-driven system.
(b) 'The operating system is the software heart to the machine.' Give a detailed explanation of what the operating system of a modern PC does.
(c) Define the term 'operating environment'.
(d) Define the term 'user interface', giving examples.
An operating system is a type of computer software.
(a) Give four tasks that are carried out by all operating systems.
(b) Describe one additional task that a multi-tasking operating system would be able to carry out
(c) Describe one additional task that a multi-user operating system would be able to carry out.