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
3241
The VIA/Cyrix III Processor can be used in which platform?
Answer:
Socket 7
The VIA/Cyrix III is compatible with Socket 7 boards.
3242
Where is the appropriate place to keep floppy disks?
Answer:
In a drawer
Floppy disks should be stored in a cool, dark place away from magnets and sunlight to prevent data loss.
3243
What is seek time?
Answer:
The time taken to move the read/write head to the correct cylinder
Seek time refers to how long it takes for a disk drive's read/write head to reach the cylinder containing the desired data track.
3244
A ___ represents approximately one billion memory locations.
Answer:
Gigabyte
A gigabyte equals roughly one billion bytes or memory locations.
3245
What component does a light pen contain?
Answer:
Light-sensitive elements
Light pens detect light emitted from the screen to interact with the display.
3246
The part of the computer system that you can physically touch is called:
Answer:
Hardware
Hardware refers to the physical components of a computer, such as the keyboard, monitor, and CPU.
3247
Which memory type requires refresh?
Answer:
DRAM
DRAM cells lose charge quickly and require periodic refreshing.
3248
The binary number system has how many symbols?
Answer:
2
Binary uses 2 symbols: 0 and 1.
3249
What type of memory retains its data even when the power is turned off and is also considered fixed?
Answer:
ROM
ROM stands for Read-Only Memory. It is non-volatile, meaning it keeps its data without power. It is also considered "fixed" or "read-only" because, in its standard form, the data is written during manufacturing and cannot be easily changed by the user.
3250
What device is used in banks to read and verify the data on cheques?
Answer:
Optical Character Reader
While MICR (Magnetic Ink Character Recognition) is the primary technology, OCR (Optical Character Reader) can also be used to scan and recognize the printed text on cheques. It converts the scanned images of characters into machine-encoded text.