Computer Science/IT MCQs
Topic Notes: Computer Science/IT
MCQs and preparation resources for competitive exams, covering important concepts, past papers, and detailed explanations.
Plato
- Biography: Ancient Greek philosopher (427–347 BCE), student of Socrates and teacher of Aristotle, founder of the Academy in Athens.
- Important Ideas:
- Theory of Forms
- Philosopher-King
- Ideal State
761
Instructions and memory addresses in computers are typically represented using:
Answer:
Binary codes
Binary codes, consisting of 0s and 1s, are used to encode instructions and memory addresses for computer processing.
762
What is the role of the scheduler in an operating system?
Answer:
To select which process should be executed next
The scheduler is a part of the operating system that decides which process runs at a certain point in time.
763
Which is NOT a feature or trait of computers?
Answer:
Intelligence
While computers excel in speed, automation, and flexibility, they do not have independent intelligence—only the power to process instructions.
764
The ability of an operating system to control several programs at once is called:
Answer:
Multitasking
Multitasking is the capability of running multiple applications simultaneously using the operating system.
765
If you rename a file five times, how many file copies remain on the disk?
Answer:
1
Renaming a file changes only its name; the file itself is not duplicated, so there remains only one copy on disk.
766
What does BIOS stand for?
Answer:
Basic Input Output System
BIOS initializes hardware and manages boot processes before the operating system loads.
767
Which of the following is an example of an embedded operating system?
Answer:
QNX
QNX is a commercial real-time operating system, aimed primarily at the embedded systems market.
768
What is the shortcut key for printing a document in Windows?
Answer:
Ctrl + P
Pressing Ctrl + P in most Windows applications will bring up the print dialog.
769
Which of the following companies does not manufacture personal computers?
Answer:
Intel
Intel is known for making computer processors, while Gateway, Dell, and Compaq manufacture personal computers.
770
In computer jargon, what is an alternative term for a software or hardware "bug"?
Answer:
Glitch
A "glitch" is another informal term for a minor or temporary error or malfunction in computer hardware or software.