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
3501
When several users access a main computer simultaneously, what is necessary?
Answer:
Terminal
Terminals enable multiple users to interact with a central computer in a multi-user environment.
3502
Third generation computers:
Answer:
Used transistors instead of vacuum tubes
The third generation of computers was characterized by the use of integrated circuits replacing transistors.
3503
The term 'baud' measures:
Answer:
Speed of data transmission over communication lines
Baud rate indicates how many signal units are sent per second in a communication channel.
3504
Any method for controlling access to or use of memory is known as:
Answer:
Memory protection
Memory protection restricts unauthorized access or misuse of memory areas.
3505
in RAM memory, DDR stands for ?
Answer:
Double data rate
In RAM, DDR stands for Double Data Rate. This technology allows for the transfer of data on both the rising and falling edges of the clock signal, effectively doubling the memory's bandwidth and performance compared to older SDR (Single Data Rate) memory.
3506
A feature of a resident package with a directly accessible appointment calendar is:
Answer:
Memory
Memory allows quick access to features like an appointment calendar in resident software.
3507
A data terminal operates as a(n):
Answer:
Both A and B
Data terminals may both send (effector) and receive (sensor) data.
3508
What does a floppy disk contain?
Answer:
Both circular tracks and sectors
Floppy disks are divided into tracks and sectors to organize data storage.
3509
A Winchester disk is a:
Answer:
Disk stack
Winchester disk refers to a fixed hard disk drive with multiple platters stacked together.
3510
Where are the contents of information stored?
Answer:
Memory data register
The MDR temporarily holds data being transferred to or from the memory.