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
21
What is the common technical term for an Integrated Circuit (IC)?
Answer:
Integrated Cicuit
A chip is a common nickname for an Integrated Circuit (IC). It is manufactured from a silicon wafer, which is etched with complex electronic circuits.
22
What mechanism do impact printers utilize to produce characters on paper?
Answer:
An inked ribbon and print head
Impact printers operate by physically striking an inked ribbon against the paper. The print head contains pins or characters that impact the ribbon, transferring the ink onto the page to form the desired text or image.
23
Which components are utilized by the CPU to rapidly accept, store, and transfer data and instructions for immediate use?
Answer:
registers
Registers are small, extremely fast storage locations located directly within the CPU.
24
Which of the following components is an integral part of the Central Processing Unit (CPU)?
Answer:
Arithmetic Logic Unit (ALU)
The Central Processing Unit consists of several key components, including the Arithmetic Logic Unit (ALU), the Control Unit (CU), and registers.
25
Which of the following tasks is NOT performed by the CPU's control unit?
Answer:
Direct operations
The control unit is responsible for fetching, interpreting, and managing the execution of instructions within the CPU.
26
Which of the following storage media does not support both read and write operations?
Answer:
CDROMs
CD-ROM stands for Compact Disc Read-Only Memory. As the name implies, it is designed strictly for reading data that has been pre-recorded onto the disc during manufacturing.
27
Which component stored on a ROM chip is responsible for initializing the hardware and loading the operating system into RAM?
Answer:
BIOS
The Basic Input/Output System (BIOS) is firmware stored on a ROM chip.
28
Which type of computer memory is permanently programmed during the manufacturing process?
Answer:
ROM
Read-Only Memory (ROM) is a type of non-volatile memory that stores data permanently. The instructions or data contained within ROM are typically written during the manufacturing stage and cannot be easily modified or erased by the user.
29
What is another common term used to refer to the main storage of a computer?
Answer:
memory
Main storage, often referred to as primary memory or RAM (Random Access Memory), is the component where the computer stores data and programs that are currently in use.
30
Which keyboard layout is often cited for its efficiency and speed compared to the standard QWERTY layout?
Answer:
Dvorak
The Dvorak Simplified Keyboard layout was designed to increase typing efficiency and reduce finger travel distance by placing the most frequently used letters on the home row.