MCQ IN COMPUTER SCIENCE & ENGINEERING

COMPUTER SCIENCE AND ENGINEERING

OPERATING SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is meant by multi-tasking?
A
The computer executes more than one instruction at a time
B
The processor carries out small parts of multiple larger tasks in turn, very quickly
C
Doing more than one job at the same time
D
None of the above
Explanation: 

Detailed explanation-1: -Multitasking involves overlapping and interleaving the execution of several programs. This is often achieved by capitalizing on the difference between a computer’s rapid processing capacity and the slower rates of its input/output devices.

Detailed explanation-2: -Multitasking, in an operating system, is allowing a user to perform more than one computer task (such as the operation of an application program) at a time.

Detailed explanation-3: -Multitasking, in a human context, is the practice of doing multiple things simultaneously, such as editing a document or responding to email while attending a teleconference. The concept of multitasking began in a computing context.

Detailed explanation-4: -Multiuser/Multitasking OS It is an operating system that permits several users to utilize the programs that are concurrently running on a single network server. The single network server is termed as “Terminal server". “Terminal client” is a software that supports user sessions. Examples include UNIX, MVS, etc.

Detailed explanation-5: -multiprocessing, in computing, a mode of operation in which two or more processors in a computer simultaneously process two or more different portions of the same program (set of instructions).

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