Computer Applications
An operating system can be categorised into two modes. In one mode, a single user is allowed to interact with the computer at a time. In other mode, multiple users share a single CPU to carry out their tasks. When a number of users are using a CPU, their programs are executed by allotting equal amount of time to each user or by providing high priority to a specific job.
Based on the above case, answer the following questions:
(a) Name the mode in which a single user interacts with computer at a time.
(b) Name the mode in which multiple users work with single CPU.
(c) In which system, CPU time is equally shared among the users?
(d) In which system, high priority is given to a specific job?
OS & GUI
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Answer
(a) Single user operating system
(b) Multi user operating system
(c) Multi user operating system (Time sharing)
(d) Multi user operating system (Realtime processing)
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The user can interact with a computer in two ways. Either the user can interact using text commands, or the users are linked with a computer through graphical illustrations. Nowadays, people prefer using the later one because it is more user-friendly. The moment you click an icon, a window will appear for you to work on.
Based on the above case, answer the following questions:
(a) Under what type of interface the user interacts with a computer using text commands?
- GUI
- CUI
- Mobile interface
- I/O interface
(b) Under what type of interface the user interacts with a computer through graphical illustrations?
- GUI
- CUI
- Pictorial interface
- Direct interface
(c) What is meant by user-friendly system?
- User interacts with computer using keyword "Friend".
- User interacts with computer using text commands.
- User interacts with computer using BASIC commands.
- User interacts with computer by selecting options from menu list.
(d) What is meant by an Icon?
- It is a pointer that moves on the computer screen.
- It is the scroll button of optical mouse.
- A person with outstanding performance.
- It is the picture component of the desktop.
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Booting