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
321
A related section of program code treated as a single unit is called:
Answer:
Block
In programming, a block of code is a section of source code grouped together, often enclosed in curly braces or other delimiters.
322
Which button should you press to make a window fill the entire screen?
Answer:
Maximize
The maximize button enlarges the window so it occupies the full display area.
323
What acts as a bridge between a user and the computer hardware?
Answer:
Operating System
The operating system (OS) serves as the primary intermediary between the computer user and the computer's physical hardware. It translates user commands into instructions that the hardware can understand and execute, and it manages hardware resources to ensure the system runs smoothly.
324
Which one of the following is not considered a storage device?
Answer:
Mouse
A mouse is an input device; DVD, hard disk, and floppy disk are storage devices.
325
What acts as a hardware platform enabling other software to run?
Answer:
Operating system
The OS manages hardware operations, providing a base for additional software to function.
326
You can detect spelling and grammar errors by:
Answer:
Press F7
** Press F7 to run the Spelling and Grammar check in MS Word.
327
Which of the following is a key feature of macOS?
Answer:
Strong security features
macOS is known for its strong security features, which are built into the operating system.
328
What is a collection of interrelated files within a computer called?
Answer:
Database
A database is an organized collection of interrelated files or data, managed together for easier access and storage.
329
"Ctrl + Down Arrow" is used to:
Answer:
Moves the cursor one paragraph down
Ctrl + Down Arrow moves the cursor to the start of the next paragraph.
330
What does the operating system create from the physical computer to make system resources available to users and applications?
Answer:
Virtual computer
The OS abstracts the real hardware to provide each application and user with what appears to be a separate “virtual computer.”