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
491
What type of software is the Windows Operating System?
Answer:
System Software
The Windows Operating System is a prime example of system software. Its fundamental role is to manage the computer's hardware, run application programs, and provide a user interface, controlling the overall operation of the computer.
492
The "time-sharing" concept in operating systems refers to:
Answer:
Sharing the computer's CPU time among multiple users or tasks
Time-sharing is a technique which enables many people, located at various terminals, to use a particular computer system at the same time.
493
Which device is write-once and cannot be erased or rewritten?
Answer:
CD-ROM
CD-ROMs only allow data to be written once; they cannot be erased or rewritten.
494
How would you display the contents of the current directory in a wide format in a Windows command prompt?
Answer:
dir /w
The `/w` option for the `dir` command displays the listing in wide format, with as many as five filenames or directory names on each line.
495
Which command is used to copy a file in a Windows command prompt?
Answer:
copy
The `copy` command is used to copy one or more files from one location to another.
496
Which keyboard shortcut is used to switch between open window programs?
Answer:
Alt+Tab
Pressing Alt+Tab on your keyboard enables you to quickly cycle through and switch between open applications in Windows.
497
An embedded object might appear in a document as:
Answer:
Embedding
An embedded object is inserted directly into the document and can be edited with its source application from within that document.
498
USB is a type of:
Answer:
Port
Universal Serial Bus (USB) refers to a widely used port for connecting peripherals like keyboards, mice, and storage devices to a computer.
499
By default, in what orientation are documents printed?
Answer:
Portrait
Most documents are set to print vertically, or in "Portrait" mode.
500
Which of the following is considered a drop-down list?
Answer:
Combo box
A combo box provides a drop-down list for users to select an option, often allowing both manual entry and selection from predefined choices.