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
3221
Multi-user computing systems save small businesses money by connecting several:
Answer:
Dumb terminals
Dumb terminals connected to a single processor permit multiple users with lower cost, as hardware resources are shared.
3222
Which key is combined with another to perform a specific task?
Answer:
Control key
The Control key modifies the function of other keys when pressed together.
3223
In a tape library, which robotic component changes and stores multiple tape cartridges?
Answer:
Auto loader
An auto loader automates the loading and unloading of tape cartridges for backups or archiving.
3224
What is the underlying technology used to read and write data on compact disks?
Answer:
Laser beams
Compact Discs (CDs) use optical storage technology. A high-precision laser beam is used to read microscopic pits and lands on the surface of the disc. The reflection of the laser is interpreted as binary data (0s and 1s), allowing the stored information to be retrieved.
3225
Which component is responsible for initializing a computer's high memory in all operating systems?
Answer:
BIOS
The BIOS (Basic Input/Output System) is a type of firmware stored on a chip on the motherboard. When a computer is turned on, the BIOS is the first software to run. Its responsibilities include initializing and testing hardware components, including setting up the system's memory for the operating system to use.
3226
Among the following, which motherboard manufacturer is the most popular?
Answer:
Asus
Asus is consistently ranked as one of the world's top motherboard manufacturers.
3227
What does VGA stand for in computer terminology?
Answer:
Video Graphics Array
VGA stands for Video Graphics Array. It is a display standard for computer monitors first introduced by IBM in 1987. The term can refer to the standard itself, the 15-pin D-subminiature VGA connector, or the 640×480 resolution.
3228
How is a computer’s processing speed typically measured?
Answer:
Clock Speed
Clock speed reflects the number of cycles a processor completes in one second, indicating performance.
3229
A storage area to compensate for speed differences between units is called:
Answer:
Buffer
A buffer temporarily stores data to synchronize data transfer between devices operating at different speeds.
3230
Microchips were introduced in which computer generation?
Answer:
Third generation
Third generation computers used integrated circuits (microchips).