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
1091
"Ctrl + Left Arrow" is used to
Answer:
Moves the cursor one word left
** Ctrl + Left Arrow moves the cursor one word to the left.
1092
Which of the following is a key characteristic of a batch operating system?
Answer:
Lack of user interaction during job processing
The users of a batch operating system do not interact with the computer directly. Each user prepares his job on an off-line device like punch cards and submits it to the computer operator.
1093
Which file system is used by default on most USB flash drives?
Answer:
FAT32
FAT32 is often the default file system for USB flash drives due to its high compatibility with a wide range of devices.
1094
Where is the date and time displayed in Windows?
Answer:
System tray
The system tray, usually at the far right of the taskbar, displays the current date and time.
1095
The ..... displays the name of every computer user on the computer
Answer:
Welcome screen
The Welcome screen presents all user account names, allowing users to select and log in.
1096
Which among the following is unlike the others in the list?
Answer:
Internet
Internet is a global network, while Windows, Unix, and Linux are types of operating systems.
1097
The core of the Linux operating system is called the:
Answer:
Kernel
The Linux kernel is a monolithic, Unix-like computer operating system kernel.
1098
The daily processing of corrections to customer accounts best exemplifies which type of processing?
Answer:
Batch processing
Batch processing is used for processing large volumes of data at scheduled intervals, like updating customer accounts.
1099
Which type of computer is commonly used by banks, railway networks, and airlines for handling bulk data processing?
Answer:
Mainframe Computer
Mainframe computers are designed for large organizations that need to process vast amounts of data, such as financial institutions and transport industries.
1100
Who were the creators of the very first electronic computer, known as ENIAC?
Answer:
J Presper Eckert and John W Mauchly
ENIAC, one of the first electronic general-purpose computers, was designed by J Presper Eckert and John W Mauchly.