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
2361
**How are computers used in agriculture?**
Answer:
For precision farming, managing crop data, and controlling automated farm equipment
** Modern agriculture uses computer technology for tasks such as GPS-guided tractors, drone surveillance of fields, and data analysis to optimize crop yields and resource use.
2362
**What does 'cloud computing' refer to?**
Answer:
The delivery of computing services—including servers, storage, databases, networking, software, analytics, and intelligence—over the Internet ("the cloud")
** Cloud computing allows users to access and store data and programs over the internet instead of on their computer's hard drive, offering flexibility and scalability.
2363
A computer cannot:
Answer:
Think on its own
** As mentioned earlier, computers lack independent thought and consciousness. They are tools that follow human instructions, although advancements in AI are blurring these lines.
2364
The evolution of computers from large room-sized machines to portable devices illustrates a trend towards:
Answer:
Miniaturization
** The history of computing has been marked by simultaneous advancements in speed, storage capacity, and a reduction in physical size (miniaturization). These trends have made computers more powerful and accessible.
2365
Which of the following units represents the largest amount of data?
Answer:
Terabyte (TB)
** The units increase in size as follows: Kilobyte, Megabyte, Gigabyte, Terabyte. A terabyte is approximately 1,000 gigabytes.
2366
A computer designed to be used by one person at a time is called a:
Answer:
Personal Computer (PC)
** A Personal Computer, which is a type of microcomputer, is by definition intended for individual use.
2367
**The primary difference between a supercomputer and a mainframe is:**
Answer:
Supercomputers focus on processing a few complex tasks, while mainframes handle many tasks simultaneously
** The architectural design differs; supercomputers are optimized for complex, computationally intensive tasks, whereas mainframes excel at high-volume input/output and transaction processing.
2368
How many bits are in a nibble?
Answer:
4
** A nibble is half a byte, which means it is composed of 4 bits.
2369
What type of computers are designed for individual use?
Answer:
Micro Computers
Microcomputers, which include desktop PCs, laptops, and tablets, are designed to be used by a single individual at a time. They are the most common type of computer and are used for a wide range of personal and professional tasks.
2370
The term "microcomputer" was introduced to distinguish it from:
Answer:
Minicomputers
** When microcomputers were first developed, they were defined by being smaller and less powerful than the existing mainframes and minicomputers. They were made possible by the invention of the microprocessor.