Question

Q 2: Justify your answer
a) Graceful degradation in multiprocessor system is beneficial?




b) an interrupt driven operating system better






c) Graphical User Interface is user friendly but command line interface has its own importance

Answer 1

Explanation:

The purpose of graceful degradation is to prevent catastrophic failure. Ideally, even the simultaneous loss of multiple components does not cause downtime in a system with this feature. In graceful degradation, the operating efficiency or speed declines gradually as an increasing number of components fail.

Answer 2

Answer:

1) The purpose of graceful degradation is to prevent catastrophic failure. Ideally, even the simultaneous loss of multiple components does not cause downtime in a system with this feature. In graceful degradation, the operating efficiency or speed declines gradually as an increasing number of components fail.

2) Modern operating systems are interrupt driven. If there are no processes to execute, no I/O devices to service, and no users to whom to respond, an operating system will sit quietly, waiting for something to happen. Events are almost always signaled by the occurrence of an interrupt, or a trap.

3) A GUI displays objects that convey information, and represent actions that can be taken by the user. ... A GUI is considered to be more user-friendly than a text-based command-line interface, such as MS-DOS, or the shell of Unix-like operating systems.

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