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
2421
When a computer is used to control a manufacturing process, which characteristic is most prominently displayed?
Answer:
Automation
** In manufacturing, computers are used to automate repetitive and complex tasks, ensuring precision and efficiency. This automation is a key application of computer technology in industrial settings.
2422
Supercomputers are typically used for:
Answer:
Complex scientific and engineering problems
** Supercomputers are employed for tasks that require immense processing power, such as climate modeling, molecular modeling, and nuclear simulations.
2423
**What is ROM (Read-Only Memory)?**
Answer:
A type of non-volatile memory from which data can only be read, not written to, by the user
** ROM contains the firmware and bootstrapping instructions (like the BIOS) that the computer needs to start up. Its contents are permanent and are not lost when the power is turned off.
2424
Smart homes, where appliances and devices can be controlled remotely using a computer or smartphone, are an application of:
Answer:
Internet of Things (IoT)
** The IoT is a network of physical objects embedded with sensors, software, and other technologies for the purpose of connecting and exchanging data with other devices and systems over the internet.
2425
Social media platforms are an application of computers in the area of:
Answer:
Communication and social networking
** Social media has become a dominant form of communication and interaction in modern society, all of which is enabled by computers, servers, and the internet.
2426
What is the term for half of a byte?
Answer:
Nibble
A byte is composed of 8 bits. A 'nibble' (or nybble) is a unit of digital information consisting of 4 bits, which is exactly half of a standard 8-bit byte. This term is often used in discussions of computer architecture and data representation.
2427
**A 'netbook' was a type of:**
Answer:
A small, lightweight, and inexpensive laptop computer
** Netbooks were a category of small laptops that were popular in the late 2000s, designed primarily for web browsing and light computing tasks. They have been largely superseded by tablets and ultrabooks.
2428
Which type of computer is less precise?
Answer:
Digital computer
** The precision of an analog computer is limited by the precision with which its physical components can be made and read. Digital computers, by contrast, can achieve any desired level of precision by simply using more binary digits.
2429
**Which of the following is the smallest and least expensive type of computer?**
Answer:
Microcomputer
** A microcomputer is a small, relatively inexpensive computer with a microprocessor as its central processing unit (CPU). It includes personal computers (PCs), laptops, and tablets.
2430
Which of the following is a key application of supercomputers?
Answer:
Weather forecasting
** Weather forecasting involves solving complex mathematical models of the atmosphere, which requires the massive processing power that only a supercomputer can provide.