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
2541
The computers that run the servers for large websites like Google and Facebook can be considered a modern, distributed form of:
Answer:
Supercomputer
** Large internet companies build their data centers using vast numbers of interconnected commodity microcomputers (servers). This distributed computing approach allows for massive scalability and is a different architecture from traditional mainframes or supercomputers.
2542
**Embedded computers are a type of microcomputer that are:**
Answer:
A part of a larger system or machine with a dedicated function
** An embedded computer is a microprocessor-based computer hardware system with software that is designed to perform a dedicated function, either as an independent system or as a part of a large system.
2543
A bug in a computer program is:
Answer:
An error or flaw in the code
** A software bug is an error, flaw, or fault in a computer program or system that causes it to produce an incorrect or unexpected result, or to behave in unintended ways.
2544
**In daily life, social media platforms are an application of computers for:**
Answer:
Networking and communication
** Social media platforms like Facebook, Twitter, and Instagram use computer and internet technology to connect people and allow them to share information and communicate.
2545
Which of the following is an example of a microcomputer?
Answer:
IBM System z
** An Apple iPad is a type of tablet computer, which falls under the broad category of microcomputers. The IBM System z is a mainframe, the Cray-1 was a famous supercomputer, and the PDP-8 was a popular minicomputer.
2546
**The first generation of computers used what for circuitry?**
Answer:
Vacuum tubes
** The earliest computers, from the 1940s and 1950s, were massive machines that relied on vacuum tubes for processing and memory, which were bulky, unreliable, and generated a lot of heat.
2547
Which statement is true about hybrid computers?
Answer:
They can process both continuous and discrete data.
** The key feature of a hybrid computer is its ability to handle both types of data. This makes them suitable for specialized applications where both forms of data are present and need to be processed together.
2548
**What is the function of RAM (Random Access Memory)?**
Answer:
To provide temporary storage for data and programs that are currently being used by the CPU
** RAM is a volatile memory that the CPU uses to hold the data it is actively working on. The more RAM a computer has, the more data it can handle at once, improving performance.
2549
The speed of a supercomputer is often measured in:
Answer:
Floating-point Operations Per Second (FLOPS)
** While processor speed is measured in GHz, the overall performance of supercomputers, which are used for scientific and engineering calculations, is often measured in FLOPS. This metric better reflects their ability to handle complex mathematical operations.
2550
The set of instructions that tells the computer what to do is called:
Answer:
Hardware
** Software is a collection of programs, instructions, and data that enables a computer to perform specific tasks. It is the intangible part of the computer system that directs the hardware.