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
2441
The term 'bit' is a contraction of:
Answer:
Binary Digit
** The word 'bit' was coined by John Tukey as a shorthand for 'binary digit', which is the fundamental unit of information in a binary system.
2442
The term used to describe the tangible and intangible components of a computer system is:
Answer:
Hardware and Software
** These two terms encompass the entire computer system. Hardware is the physical equipment, and software is the set of instructions that runs on that equipment.
2443
The main advantage of a digital computer over an analog computer is its:
Answer:
Accuracy and programmability
** Digital computers are more accurate because they work with discrete values, which are less susceptible to noise and interference than the continuous values used by analog computers. They are also highly programmable, making them more versatile.
2444
**Which of the following is an example of a mainframe computer application?**
Answer:
Processing large-scale transactions for a bank or airline
** Mainframes excel at high-volume, secure transaction processing, making them the backbone of industries that handle millions of transactions daily.
2445
**What kind of computer system is used to automatically grade multiple-choice questions in standardized tests?**
Answer:
Optical Mark Recognition (OMR)
** OMR technology is used to scan and read the shaded bubbles or marks on answer sheets. This automates the grading process for multiple-choice exams, making it fast and accurate.
2446
Which type of computer has the highest number of users in the world?
Answer:
Microcomputers
** Microcomputers, in the form of desktops, laptops, smartphones, and tablets, are by far the most numerous and widely used type of computer globally.
2447
**A computer's performance is NOT affected by:**
Answer:
The color of the computer case
** The performance of a computer is determined by its hardware components and their specifications. The physical appearance or color of the case has no impact on how well it functions.
2448
**What computer application is used for real-time stock trading?**
Answer:
Online trading platform
** Online trading platforms are specialized software applications that allow investors to buy and sell securities like stocks and bonds over the internet in real time.
2449
Which of the following is an example of a computer application in daily entertainment?
Answer:
Streaming movies on a service like Netflix.
** Computers and the internet have revolutionized entertainment, with streaming services, online gaming, and digital music being prominent examples of their application in this field.
2450
**What does the term 'GUI' stand for in computer terminology?**
Answer:
Graphical User Interface
** A GUI is a type of user interface that allows users to interact with electronic devices through graphical icons and visual indicators such as secondary notation, instead of text-based user interfaces, typed command labels or text navigation.