MCQ IN COMPUTER SCIENCE & ENGINEERING

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COMPUTER SCIENCE AND ENGINEERING

OPERATING SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How many applications can be processed by the CPU at a time?
A
1
B
2
C
3
D
Several
Explanation: 

Detailed explanation-1: -A single-CPU system can only run one thing at any given time. Therefore, if your application is running, everything else on the system is not. And the opposite is, of course, true-if something other than your application is running, then your application is doing nothing.

Detailed explanation-2: -At its core, a CPU takes instructions from a program or application and performs a calculation. This process breaks down into three key stages: Fetch, decode, and execute.

Detailed explanation-3: -Nearly all CPUs today are multi-core: they contain several processing units that can handle different tasks at once.

Detailed explanation-4: -The thousand instructions per second (kIPS) unit is rarely used today, as most current microprocessors can execute at least a million instructions per second.

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