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
2431
The process of creating an online version of an exam from a bank of questions is facilitated by:
Answer:
A test authoring tool
** Test authoring software allows educators and examiners to create, manage, and deploy tests and quizzes. It provides features for creating various question types, managing question banks, and setting test parameters.
2432
**Which of the following best describes a minicomputer?**
Answer:
A multi-user computer with less power than a mainframe but more than a microcomputer
** Minicomputers served as mid-range systems for businesses and scientific applications that needed more power than a microcomputer could offer but did not need the full capacity of a mainframe.
2433
**Which of the following is NOT a type of microcomputer?**
Answer:
Desktop
** Desktops, laptops, and tablets are all types of microcomputers designed for individual users. Mainframes are much larger and more powerful computers used by large organizations.
2434
What is the smallest unit of data in a computer?
Answer:
Bit
** A bit (short for binary digit) is the most basic unit of information in computing. It can have one of two values, typically represented as 0 or 1.
2435
**A handheld computer, smaller than a laptop, is often called a:**
Answer:
Personal Digital Assistant (PDA) or Smartphone
** PDAs were early handheld computers, and their functionality has been largely integrated into modern smartphones, which are powerful, portable computing devices.
2436
**A type of microcomputer that is designed to be placed on a desk and is not portable is called a:**
Answer:
Laptop
** A desktop computer is a personal computer that fits on or under a desk. It has a monitor, keyboard, mouse, and a CPU tower. Unlike laptops, it is not designed for portability.
2437
Which application of computers in daily life involves buying and selling goods and services over the internet?
Answer:
E-commerce
** E-commerce (electronic commerce) refers to the entire online process of developing, marketing, selling, delivering, servicing, and paying for products and services.
2438
A scanner is a type of:
Answer:
Input device
** A scanner is used to convert physical documents or images into a digital format that can be stored and manipulated on a computer. Therefore, it is an input device.
2439
The overall purpose of all the characteristics of a computer is to:
Answer:
Process data into useful information.
** At its core, a computer is a data processing machine. All its characteristics—speed, accuracy, storage, etc.—work together to achieve the fundamental goal of taking raw data, processing it, and producing meaningful information.
2440
A key characteristic of a mainframe computer is its:
Answer:
High reliability and ability to support thousands of users simultaneously
** Mainframes are designed for high availability and reliability, often with redundant components to prevent failures. They are also designed to handle a massive number of concurrent users and transactions.