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
131
Which type of memory technology is capable of operating at electronic speeds?
Answer:
Semiconductor memory
Semiconductor memory is a digital electronic data storage device, often used as computer memory, implemented with semiconductor electronic devices on an integrated circuit.
132
What type of peripheral device is a computer keyboard?
Answer:
input
A keyboard is classified as an input device because it allows the user to enter data and commands into the computer system. It translates physical keystrokes into digital signals that the processor can interpret.
133
What physical components are present on a floppy disk for data storage?
Answer:
Both circular tracks and sector
A floppy disk is formatted with both circular tracks and sectors. Tracks are the concentric rings on the disk surface, while sectors are the smaller subdivisions of these tracks.
134
Which of the following statements regarding Random Access Memory (RAM) is incorrect?
Answer:
It is the same as hard disk storage.
RAM is volatile memory used for temporary data storage while the computer is running, whereas a hard disk is non-volatile storage used for long-term data retention. Therefore, equating RAM with hard disk storage is factually incorrect.
135
Which of the following are recognized types of Random Access Memory (RAM)?
Answer:
All of the above
Random Access Memory (RAM) comes in various forms designed for specific computing needs.
136
Which component of the CPU is responsible for executing arithmetic and logical operations?
Answer:
ALU
The Arithmetic Logic Unit (ALU) is a fundamental digital circuit within the central processing unit. It performs all mathematical calculations, such as addition and subtraction, and logical operations, such as AND, OR, and NOT.
137
Which component of a computer system is primarily responsible for data storage?
Answer:
Disk drive
A disk drive, such as a Hard Disk Drive (HDD) or Solid State Drive (SSD), is a non-volatile storage device used to store digital data permanently. In contrast, keyboards are input devices, while monitors and printers are output devices.
138
Which of the following output devices is best suited for producing high-quality graphical reproductions?
Answer:
Plotter
A plotter is a specialized output device that uses pens to draw continuous lines on paper.
139
Which output device utilizes prerecorded messages on magnetic media to provide an audio response?
Answer:
Voice response unit
A Voice Response Unit (VRU) is an automated system that interacts with callers by playing prerecorded audio messages.
140
What is the term for the sets of parallel electrical conducting lines that connect various components on a computer's motherboard?
Answer:
Buses
In computer architecture, a bus is a communication system that transfers data between components inside a computer, or between computers.