Computer Science - IT MCQs
Topic Notes: Computer Science - IT
<p>MCQs and preparation resources for competitive exams, covering important concepts, past papers, and detailed explanations.</p>
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
1921
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.
1922
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.
1923
A data terminal operates as a(n):
Answer:
Both A and B
Data terminals may both send (effector) and receive (sensor) data.
1924
What does a floppy disk contain?
Answer:
Both circular tracks and sectors
Floppy disks are divided into tracks and sectors to organize data storage.
1925
A Winchester disk is a:
Answer:
Disk stack
Winchester disk refers to a fixed hard disk drive with multiple platters stacked together.
1926
Where are the contents of information stored?
Answer:
Memory data register
The MDR temporarily holds data being transferred to or from the memory.
1927
Which device is directly controlled from a keyboard?
Answer:
Card punch
A card punch machine creates punched cards from keyboard input for data storage.
1928
Programs stored in ROM are called what?
Answer:
Firmware
Firmware is permanent software programmed into read-only memory.
1929
A bootstrap is:
Answer:
A small initialization program to start a computer
The bootstrap loads the operating system during the computer's startup process.
1930
Why is the computer mouse called a "mouse"?
Answer:
Its cable looks like a tail
The mouse is named for its tail-like cable that extends from the device.