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
121
A front-end processor is a specialized type of which component, designed specifically to manage communication processing tasks?
Answer:
CPU
A front-end processor is a specialized computer or a dedicated processor that offloads communication tasks from the main host computer.
122
What term describes software programs that are permanently embedded into hardware, typically stored in Read-Only Memory (ROM)?
Answer:
Firmware
Firmware is a specific class of computer software that provides low-level control for a device's specific hardware.
123
Which category of computer peripheral does a dot-matrix device belong to?
Answer:
Printer
A dot-matrix is a type of impact printer that produces characters by striking pins against an ink ribbon to create a pattern of dots on paper.
124
Which component of the CPU stores the current instruction while it is being processed?
Answer:
CPU
The instruction register is a specialized register located within the Central Processing Unit (CPU). It holds the machine code instruction currently being decoded and executed by the processor control unit.
125
From a hardware perspective, what is a computer primarily composed of?
Answer:
switching devices
At its most fundamental level, a computer is a collection of electronic switching devices, such as transistors.
126
In the context of RAM technology, what is the full form of DDR?
Answer:
Double data rate
DDR stands for Double Data Rate.
127
What term describes the duration during which a piece of computing equipment is actively performing its intended function?
Answer:
Effective time
Effective time refers to the actual period during which a hardware component or system is operational and successfully performing useful work, as opposed to idle time or time spent on overhead tasks.
128
Which of the following is a storage medium suitable for small amounts of data?
Answer:
Magnetic card
A magnetic card, such as a credit card or ID badge, contains a magnetic stripe that stores a limited amount of data.
129
Which of the following components serves as the primary memory in a computer system?
Answer:
RAM
RAM (Random Access Memory) is the volatile primary memory of a computer. It stores the data and instructions that the CPU currently needs to access for active processes, allowing for high-speed read and write operations during system runtime.
130
How is a computer system classified if it contains more than one central processing unit?
Answer:
Multiprocessor
A multiprocessor system is a computer architecture that uses two or more central processing units (CPUs) within a single computer system. This design allows the system to execute multiple instructions simultaneously, increasing overall processing power.