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
2381
Which of the following characteristics of a computer refers to its ability to perform a variety of tasks?
Answer:
Versatility
** Versatility is the characteristic of a computer that allows it to perform a wide range of tasks, from simple calculations to complex simulations. This is possible because computers are programmable and can execute different sets of instructions.
2382
Microsoft Word or Google Chrome are examples of:
Answer:
Application software
** Application software is designed to help the user perform specific tasks, such as writing a document, browsing the web, or playing a game.
2383
A proctored online exam involves:
Answer:
An exam that is supervised, often using a webcam and microphone, to prevent cheating.
** Online proctoring is a method of ensuring the integrity of online exams by using technology to monitor the test-taker and their environment.
2384
What is the largest scale of computer system?
Answer:
Enterprise-level computer
Mainframe computers, often referred to as enterprise-level computers, are the largest in scale, designed for massive data processing and supporting thousands of users simultaneously in large organizations like banks and corporations. High-performance computers (supercomputers) are the fastest, but mainframes are the largest in terms of transaction throughput and user support.
2385
Processed, organized, and structured data is called:
Answer:
Information
** The output of a computer's processing is information, which is data that has been given context and meaning.
2386
In healthcare, computers are used for:
Answer:
All of the above
** Computers have a wide range of applications in healthcare, from administrative tasks like record-keeping to highly sophisticated diagnostic and surgical procedures.
2387
The process of converting an analog signal to a digital signal is called:
Answer:
Sampling or digitization
** An Analog-to-Digital Converter (ADC) is a device that converts a continuous analog signal into a discrete digital signal. This process involves taking samples of the analog signal at regular intervals and representing them as binary numbers.
2388
**In daily life, what is the purpose of using a word processor application?**
Answer:
To create, edit, and format text documents
** Word processors such as Microsoft Word or Google Docs are essential tools for creating a variety of documents, including letters, resumes, reports, and flyers, making them a staple computer application for personal and professional use.
2389
The memory that stores the computer's startup instructions and is non-volatile (retains its contents when the power is off) is:
Answer:
ROM
** Read-Only Memory (ROM) contains the firmware that is needed to boot up the computer. Its contents are permanent and cannot be easily changed.
2390
The output of an analog computer is typically in the form of:
Answer:
A graph or a reading on a dial
** Since analog computers deal with continuous physical quantities, their output is often a visual representation of that quantity, such as the position of a needle on a gauge or a line on a graph.