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
3271
What computer system do travel agents use to book flights?
Answer:
Mainframe computer
Mainframes handle large-scale transaction processing like flight reservations.
3272
How does an impact printer produce characters?
Answer:
Using an inked ribbon and print head
Impact printers strike an inked ribbon onto paper to create characters.
3273
What stores frequently accessed data to speed up processing?
Answer:
Cache Memory
Cache memory is ultra-fast storage located close to the CPU for active data.
3274
Windows 98 is an:
Answer:
Operating System
Windows 98 is a graphical operating system developed by Microsoft.
3275
A flip-flop has how many stable states?
Answer:
Two
Flip-flops are bistable devices with two stable states used for storing binary data.
3276
The pattern of printed lines on most products is called:
Answer:
Barcodes
Barcodes store product information in machine-readable format.
3277
Memories that can only be read and not written to are called:
Answer:
ROM
Read-Only Memory (ROM) can only be read, not modified under normal operation.
3278
A precise definition of a computer is:
Answer:
An electronic device that accepts and processes data using stored instructions
This definition best describes a computer's function.
3279
What does a dumb terminal possess?
Answer:
A keyboard and display
A dumb terminal consists of only input and output devices like a screen and keyboard and lacks processing power.
3280
Compared to secondary memory, primary memory is:
Answer:
Fast
Primary memory (RAM) provides faster data access than secondary storage.