Computer Science - IT MCQs
Topic Notes: Computer Science - IT
<p>MCQs and preparation resources for competitive exams, covering important concepts, past papers, and detailed explanations.</p>
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
61
What term describes a structured, step-by-step procedure designed to accomplish a specific task?
Answer:
algorithm
An algorithm is a finite sequence of well-defined, computer-implementable instructions, typically used to solve a class of specific problems or to perform a computation.
62
Which of the following functions is primarily performed by the Arithmetic Logic Unit (ALU)?
Answer:
IV. communicate with input devices
The Arithmetic Logic Unit (ALU) is a core component of the CPU responsible for performing mathematical calculations and logical comparisons.
63
What is the term used to describe specific locations within a computer's main memory?
Answer:
Words
In computer architecture, memory is organized into addressable units. A 'word' represents a fixed-sized piece of data handled as a unit by the processor, and memory locations are often referred to by the size of the words they store.
64
What is the name of the technology that allows surgeons to perform complex medical procedures by remotely manipulating robotic devices?
Answer:
Robotics
Robotics in medicine involves the use of computer-controlled systems to assist surgeons in performing delicate operations.
65
What is the definition of a 'user interface' in computing?
Answer:
What the user sees on the screen and how they can interact with it.
A user interface (UI) encompasses the visual elements, such as menus, icons, and windows, along with the input methods like mouse clicks or keyboard shortcuts, that allow a user to interact effectively with a software application or operating system.
66
Which type of memory is primarily utilized for active tasks during standard computer operation?
Answer:
RAM
Random Access Memory (RAM) is the primary volatile memory used by a computer to store data and instructions that the CPU needs to access quickly while running applications and the operating system.
67
What are the primary colors utilized in computer graphics systems?
Answer:
RGB
Computer graphics use the RGB color model, which stands for Red, Green, and Blue. By combining these three primary colors in varying intensities, a wide spectrum of colors can be produced on digital displays.
68
Which of the following entities is primarily a semiconductor manufacturer rather than a personal computer manufacturer?
Answer:
Intel
Intel is a global leader in the design and manufacturing of microprocessors and semiconductor chips.
69
What is the recommended first step when planning to purchase a new computer system?
Answer:
define your computing needs
Before purchasing a computer, it is essential to define your specific computing needs.
70
Which of the following best defines the term 'data processing'?
Answer:
The manipulation of information or data
Data processing refers to the systematic performance of operations on data, such as calculation, classification, sorting, or summarization, to transform raw input into meaningful information.