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
191
The operating system serves as a(n) ______ between the user and the computer.
Answer:
interface
The operating system acts as an interface, allowing users to interact with computer hardware and software[7](https://www.tutorialspoint.com/what-is-the-user-interface-and-operating-system-interface)[8](https://www.indeed.com/career-advice/career-development/what-are-interfaces).
192
When adding a new peripheral device, you usually need to install a _____.
Answer:
driver
A driver is software that lets the operating system communicate with peripherals, such as printers or keyboards[9](https://ph.rs-online.com/web/c/semiconductors/interface-ics/peripheral-drivers/).
193
An example of non-numerical data is:
Answer:
Employee address
Employee address is textual/non-numerical data; scores and balances are numerical.
194
The first mechanical computer designed by Charles Babbage was called what?
Answer:
Analytical Engine
The Analytical Engine was a proposed mechanical general-purpose computer designed in the 1830s.
195
How many pins are there in an Ethernet RJ-45 connector?
Answer:
8
RJ-45 connectors used in Ethernet LAN networking have 8 pins.
196
Typical hard disk storage capacity is approximately?
Answer:
1 GB
Modern hard disks usually have storage capacities around gigabytes.
197
Storage and memory differ in:
Answer:
All of these
Storage is generally slower, less expensive, and more reliable for long-term retention than memory.
198
CPU speed is measured in what unit?
Answer:
Million instructions per second
MIPS measures CPU processing performance.
199
What is the best device to navigate a 3D environment?
Answer:
Space mouse
A space mouse allows smooth navigation in three-dimensional digital spaces.
200
Which device is best suited for accepting handwritten input?
Answer:
Tablet PC
Tablet PCs allow handwriting input using a stylus or pen.