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
21
In which processing model are input and output devices situated remotely from the central computer facility?
Answer:
Batch processing
In traditional batch processing systems, data was often collected at remote locations and submitted to a central facility for processing.
22
Which category of computer is specifically engineered to be as compact and portable as possible?
Answer:
Micro computer
A microcomputer is designed for individual use and is characterized by its small size, often fitting on a desk or in a briefcase.
23
What is the specific term for the high-speed storage element within a processor that acts as a temporary workspace during computational operations?
Answer:
cache memory
Cache memory is a high-speed volatile memory component that provides high-speed data access to the processor and stores frequently used computer programs, applications, and data.
24
What is the purpose of the keyboard shortcut 'Windows Key + Ctrl + F'?
Answer:
Find Computers
In older versions of the Windows operating system, the keyboard shortcut Windows Key + Ctrl + F was used to open the 'Find Computer' dialog box.
25
Which category of hardware components is responsible for converting raw data into a format that a computer system can process?
Answer:
input
Input devices are essential hardware components that translate human-readable data or physical signals into machine-readable binary code.
26
Which file format is commonly used as a standard method for encoding and compressing digital images?
Answer:
JPEG
JPEG (Joint Photographic Experts Group) is a widely used method of lossy compression for digital images.
27
Which of the following devices are classified as direct entry input devices?
Answer:
All of the above
Direct entry input devices allow data to be entered directly into a computer system without the need for manual keyboard typing.
28
In which domain are COBOL applications primarily utilized?
Answer:
commercial
COBOL, which stands for Common Business Oriented Language, was specifically designed for business data processing.
29
Which key should be pressed to close an open menu without selecting any of its options?
Answer:
Escape
The Escape (Esc) key is the standard keyboard shortcut used in graphical user interfaces to cancel the current operation or close an active menu, dialog box, or dropdown list without executing any commands.
30
In a network architecture, what is the term for a computer that primarily provides data or services to other devices?
Answer:
Host
A host is a computer or other device connected to a computer network. A host may work as a server offering information resources, services, and applications to users or other nodes on the network.