General Knowledge MCQs
Topic Notes: General Knowledge
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
91
What does **USB** stand for?
Answer:
Universal Serial Bus
**USB** is an industry standard that establishes specifications for cables, connectors, and protocols for connection, communication, and power supply between computers and peripherals.
92
What does **GUI** stand for in computing?
Answer:
Graphical User Interface
A **GUI** is a form of user interface that allows users to interact with electronic devices through graphical icons and audio indicator such as primary notation, instead of text-based user interfaces.
93
What does **RADAR** stand for?
Answer:
Radio Detection and Ranging
**RADAR** is a detection system that uses radio waves to determine the range, angle, or velocity of objects.
94
What does **URL** stand for?
Answer:
Uniform Resource Locator
A **URL** is colloquially termed a web address; it is a reference to a web resource that specifies its location on a computer network and a mechanism for retrieving it.
95
What does **RAM** stand for?
Answer:
Random Access Memory
**RAM** is a form of computer memory that can be read and changed in any order, typically used to store working data and machine code.
96
What does **MRI** stand for in medical imaging?
Answer:
Magnetic Resonance Imaging
**MRI** is a medical imaging technique used in radiology to form pictures of the anatomy and the physiological processes of the body using strong magnetic fields.
97
What does **LASER** stand for?
Answer:
Light Amplification by Stimulated Emission of Radiation
**LASER** is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation.
98
What does **HTTP** stand for in web technology?
Answer:
Hypertext Transfer Protocol
**HTTP** is the foundation of data communication for the World Wide Web. It is the protocol used for transmitting hypermedia documents, such as HTML.
99
What does **DNA** stand for in biology?
Answer:
Deoxyribonucleic Acid
**DNA** is the molecule that carries genetic instructions for the development, functioning, growth, and reproduction of all known organisms and many viruses.
100
What does **CPU** stand for in computer science?
Answer:
Central Processing Unit
The **CPU** is the primary component of a computer that acts as its "brain." It performs basic arithmetic, logic, controlling, and input/output (I/O) operations specified by the instructions in the program.