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
1911
Multiple choice exam answer sheets can be automatically evaluated by:
Answer:
Optical Mark Reader (OMR)
OMR detects marks on answer sheets to automatically grade multiple choice tests.
1912
Chips that can be reprogrammed using special external equipment are:
Answer:
PROM
Programmable ROM (PROM) chips can be programmed once after manufacturing.
1913
What device category includes printers and monitors?
Answer:
Output Units
Output devices are any pieces of computer hardware that convert information into human-perceptible form. Monitors display visual information (soft copy), and printers create physical copies of information (hard copy). Both are used to present the results of the computer's processing.
1914
What type of memory serves as an intermediary between the CPU and main memory?
Answer:
Cache memory
Cache memory is a small, extremely fast type of volatile memory that is built into the CPU or placed on a separate chip with a direct connection to the CPU. It acts as a buffer between the CPU and the main RAM, storing frequently accessed data and instructions to speed up processing.
1915
Processing refers to what?
Answer:
Processing strings of numbers and special symbols
Processing involves handling and manipulating strings composed of numbers, letters, and special characters.
1916
The main system board of a computer is called:
Answer:
Motherboard
The motherboard holds the CPU, memory, and essential components for system operation.
1917
When several users access a main computer simultaneously, what is necessary?
Answer:
Terminal
Terminals enable multiple users to interact with a central computer in a multi-user environment.
1918
Third generation computers:
Answer:
Used transistors instead of vacuum tubes
The third generation of computers was characterized by the use of integrated circuits replacing transistors.
1919
The term 'baud' measures:
Answer:
Speed of data transmission over communication lines
Baud rate indicates how many signal units are sent per second in a communication channel.
1920
Any method for controlling access to or use of memory is known as:
Answer:
Memory protection
Memory protection restricts unauthorized access or misuse of memory areas.