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
1
What is the full form of the term 'WINDOWS' in the context of computing?
Answer:
Wide interactive Network Development for Office work solution
The term WINDOWS is often humorously or colloquially expanded into this acronym to describe its function as a wide-reaching interactive network development platform designed for office productivity and business solutions.
2
Which key on a standard computer keyboard does not have its name or function printed on the keycap?
Answer:
SPACE
The space bar is unique among standard keyboard keys because it does not feature a label or text printed on its surface. Additionally, it is physically the longest key on the keyboard, designed to be easily accessible by the thumbs during typing.
3
What is the term for a small film-plate used to store microfilmed output from a computer screen?
Answer:
microfiche
Computer Output Microfilm (COM) is a technology that records computer data onto microfilm or microfiche.
4
Which operating system was specifically developed by Microsoft for early smartphones and Pocket PC devices?
Answer:
Windows Mobile
Windows Mobile was the primary mobile operating system developed by Microsoft for smartphones and personal digital assistants (PDAs) before the introduction of Windows Phone.
5
What is the total storage capacity in bits for an 8K RAM module?
Answer:
8192
In computing, 1K represents 1024 bytes. Since 1 byte equals 8 bits, an 8K RAM module contains 8 * 1024 bytes, which equals 8192 bytes. Therefore, the total storage capacity is 8192 bytes, or 65536 bits.
6
What term describes the transmission and visual presentation of text and graphical data?
Answer:
Video text
Video text refers to the electronic transmission and display of text and graphical information on a screen, often used in information retrieval systems.
7
Approximately how many operations per second can a modern, high-performance mainframe computer execute?
Answer:
1,00,00,00,000
Mainframe computers are designed for high-volume processing and complex calculations.
8
What is the term for the display feature that highlights specific areas of the screen to draw the operator's attention?
Answer:
Reverse video
Reverse video is a display technique where the foreground and background colors of a specific area are swapped.
9
What is the full form of the acronym ALU?
Answer:
Arithmetic Logic Unit
The Arithmetic Logic Unit (ALU) is a critical component of a computer's Central Processing Unit (CPU).
10
What term refers to specialized computer chips integrated into devices like automobiles or thermostats to perform dedicated functions?
Answer:
Embedded computers
Embedded computers are computing systems designed to perform specific, dedicated tasks within a larger mechanical or electrical system.