Computer Basics
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Q421.What type of memory does the CPU directly access?
Correct Answer: A
The CPU directly accesses primary memory (RAM) to fetch and execute instructions with very low latency during computer operations.
Q422.The CPU cannot store data permanently because _____?
Correct Answer: C
The CPU is a processing unit that contains high-speed temporary registers, but it is not designed for permanent data storage; long-term storage is handled by secondary storage devices.
Q423.Which unit in the CPU controls the flow of instructions and data?
Correct Answer: C
The Control Unit (CU) coordinates and directs the flow of data, instructions, and operations within the CPU and other hardware components.
Q424.What type of memory is used to boot the computer?
Correct Answer: C
Non-volatile ROM (Read-Only Memory) contains the BIOS or startup firmware containing instructions required to boot the computer system.
Q425.What is the purpose of a graphics card?
Correct Answer: B
A graphics card (GPU) processes and renders visual data, displaying images, videos, and 3D graphics smoothly on the monitor screen.
Q426.Which of the following types of memory offers the highest speed and performance?
Correct Answer: C
Cache memory is a small, ultra-fast, high-performance volatile memory location situated inside or close to the CPU core.
Q427.What is the purpose of the cache memory?
Correct Answer: A
Cache memory stores frequently accessed main memory instructions and data, allowing the CPU to retrieve them immediately and speeding up processing times.
Q428.A "current file" in government filing terminology refers to ______?
Correct Answer: C
A current file refers to an active file currently being processed or dealt with. Once action is completed, it is moved to 'closed' or 'recorded' status.
Q429.An Art of writing code words is called ?
Correct Answer: A
Cryptography represents the mathematical art and science of securing and coding data so that only authorized parties can read it.
Q430.The picture quality depends on _______?
Correct Answer: C
Image clarity and resolution directly depend on the number of pixels (picture elements) contained in the digital image structure.
Q431.You can open the previously saved program in the computer by clicking on ______?
Correct Answer: A
In Microsoft Office and similar desktop applications, previously saved files are opened through options inside the File Menu.
Q432.Functions defined by the programmer are known as _____?
Correct Answer: C
Functions created, named, and defined by software developers are called user-defined functions, distinguishing them from standard library (pre-defined) functions.
Q433.Which machine performs both input and output functions?
Correct Answer: A
A Fax Machine scans paper documents (input), transmits them across telephone lines, and prints received documents (output), acting as an I/O device.
Q434.Which type of chart is suitable to show a family's income from three different sources?
Correct Answer: A
A pie chart represents the proportional share of parts to a whole, making it ideal to show how family income is split across different sources.
Q435.MS Word is still most widely used ____ software in the world.
Correct Answer: A
MS Word remains the premier and most widely integrated word processing software used globally to write, format, and manage text documents.
Q436.Which one of the following is not can be used for hard copy output device?
Correct Answer: B
A speaker is an audio output device that produces sound waves (softcopy audio), unlike physical printing devices like plotters and printers.
Q437.DEC VAX and IBM AS/400 are good examples of ______?
Correct Answer: A
DEC VAX and IBM AS/400 are classic multi-user minicomputers, which were mid-sized machines more powerful than microcomputers but smaller than mainframes.
Q438.To read information from cheques, banks mostly use ______?
Correct Answer: B
Magnetic Ink Character Recognition (MICR) is an input technology utilized by banks to securely read, verify, and clear cheques printed with magnetic inks.
Q439.A complete microcomputer system consists of _____?
Correct Answer: D
A complete microcomputer incorporates a processing core (microprocessor), primary memory (RAM/ROM), and peripheral devices (keyboard, mouse, monitor).
Q440.Where does a computer add and compare data?
Correct Answer: B
Computational addition and logical data comparisons are executed within the CPU chip, primarily inside the Arithmetic Logic Unit (ALU).