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
441
Portable computers convenient for mobile use are called _____.
Answer:
Laptops
Laptops are easy to carry and designed for users who need computing power on the go.
442
Which keyboard key usually does not display its name on the key itself?
Answer:
SPACE
The space bar is typically a long, blank key without any label or name printed on it.
443
What are the main functions of an operating system?
Answer:
All of the above
An operating system has several crucial functions, including managing hardware resources (like the CPU and memory), monitoring system performance, and handling disk and file management. These tasks ensure the computer runs efficiently and provides a stable platform for applications.
444
The concept of "live CDs" or "live USBs" allows users to try out which operating system without installing it?
Answer:
Linux
Many Linux distributions offer a live version that can be run from a CD or USB drive, allowing users to test the operating system before installing it on their hard drive.
445
What components are typically loaded when Windows is started in Safe Mode?
Answer:
All of above
Safe Mode loads only essential drivers, including those for the keyboard, mouse, and basic VGA graphics, to allow troubleshooting and repair of system issues.
446
What is stored in the clipboard?
Answer:
Copied text
The clipboard is a temporary storage area in a computer's memory. When you use the "Copy" or "Cut" command on text, images, or files, the selected data is placed onto the clipboard, ready to be "Pasted" elsewhere.
447
What is the purpose of the Master File Table (MFT) in NTFS?
Answer:
To store information about all the files and directories on the volume
The MFT is a special file on an NTFS volume that contains information about all the other files and directories on the volume.
448
A co-processor:
Answer:
Is relatively easy to support in software
Co-processors, such as math co-processors, often require changes only at the software level, making their support easier in many cases.
449
Which storage medium cannot be erased or rewritten by the user?
Answer:
A CD-ROM
CD-ROMs are designed to be read-only, preventing the user from deleting or modifying the stored information.
450
Which involves processing on multiple processors in a computer?
Answer:
Multiprocessing
Multiprocessing is the use of two or more central processing units (CPUs) within a single computer system. This allows for true parallel processing, where multiple tasks can be executed simultaneously on different processors, significantly increasing performance.