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
141
Which storage device provides rapid, random-access capabilities for data retrieval?
Answer:
Disk storage unit
A disk storage unit, such as a Hard Disk Drive (HDD) or Solid State Drive (SSD), is a random-access device.
142
Which category of hardware does a dot-matrix device belong to?
Answer:
Printer
A dot-matrix printer is an impact printer that produces characters by striking pins against an ink ribbon onto paper.
143
Which component serves as the firmware responsible for storing the essential startup instructions for a computer system?
Answer:
BIOS
The BIOS (Basic Input/Output System) is a type of firmware stored on a chip on the motherboard.
144
What device is utilized by a hybrid computer to perform the modulation and demodulation of signals between digital and analog formats?
Answer:
Modem
A modem, which is an abbreviation for 'Modulator-Demodulator,' is a critical hardware component that facilitates communication between different types of signals.
145
Which of the following are considered the most prevalent types of computer storage devices?
Answer:
Both A & B
Magnetic storage, such as Hard Disk Drives (HDDs), and Flash memory, such as Solid State Drives (SSDs) and USB drives, are currently the most widely used storage technologies in computing.
146
In modern computer systems, where is the BIOS firmware typically stored?
Answer:
Flash
The Basic Input/Output System (BIOS) is firmware used to perform hardware initialization during the booting process.
147
How is the storage nature of a hard disk drive classified?
Answer:
nonvolatile
Hard disk drives are classified as nonvolatile storage because they retain stored data even when the power supply is disconnected.
148
Which of the following items is not classified as a computer storage device?
Answer:
Mouse
A storage device is hardware used to store, port, or extract data files and objects. DVDs, hard disks, and floppy disks are all mediums used for data retention.
149
What component is typically connected to the motherboard using IDE or SATA interfaces?
Answer:
Hard disk
IDE (Integrated Drive Electronics) and SATA (Serial Advanced Technology Attachment) are standard interfaces used to connect storage devices, such as hard disk drives and optical drives, to a computer's motherboard.
150
Which type of memory technology is typically utilized for Cache RAM?
Answer:
SRAM
Cache memory is implemented using Static RAM (SRAM). Unlike Dynamic RAM (DRAM), which requires constant refreshing to maintain data, SRAM is significantly faster and does not need to be refreshed as long as power is supplied.