Computer Basics

653 questions available

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All Introduction to Computers 1 Types of Computers Generations of Computers 1 Computer Components Hardware 630 Software 9 Input & Output Devices 3 Memory & Storage 4 CPU 3 Data & Information 1
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Q641.In graph theory, what does the term 'chromatic number' of a graph represent?

Easy
A The minimum number of colors required for a proper edge coloring of the graph
B The maximum number of colors required for a proper vertex coloring of the graph
C The minimum number of colors required for a proper vertex coloring of the graph
D The minimum number of colors required for a proper edge mapping of the graph
Hardware PPSC

Correct Answer: C

The chromatic number is the minimum number of colors needed to color the vertices of a graph such that no two adjacent vertices share the exact same color.

Q642.What type of hardware virtualization is utilized by hypervisors like Microsoft's Hyper-V?

Easy
A Full virtualization
B Emulation
C Para-virtualization
D None of these
Hardware PPSC

Correct Answer: C

Hyper-V uses para-virtualization where guest operating systems are aware of the hypervisor and communicate with it for optimized hardware performance.

Q643.In computer hardware, what is meant by a 'bottleneck'?

Easy
A A component that improves the performance of other hardware
B A component that limits the potential or performance of other hardware
C An unnecessary motherboard expansion component
D A hardware component that is always the fastest in the system
Hardware PPSC

Correct Answer: B

A bottleneck refers to a hardware component (like a slow CPU or storage drive) that limits the performance and potential of faster components (like a high-end GPU).

Q644.Which of the following physical components is absolutely necessary to house and execute the BIOS program?

Easy
A Motherboard
B CPU
C RAM
D Hard disk
Hardware PPSC

Correct Answer: A

The BIOS is low-level firmware permanently stored on a non-volatile ROM/Flash chip integrated directly onto the motherboard.

Q645.What is the default data type of a fractional decimal value like 163.23 in programming?

Easy
A Int (Integer)
B Bool (Boolean)
C Float (Floating-Point)
D Char (Character)
Hardware PPSC

Correct Answer: C

Fractional numbers with decimals are standardly represented as float or double-precision floating-point values.

Q646.What term defines the total amount of time a process spends in a system from its initial arrival to final completion?

Easy
A Throughput
B Turnaround Time
C Output
D None of these
Hardware PPSC

Correct Answer: B

Turnaround Time represents the complete lifespan of a process, measuring the exact duration between submission and termination.

Q647.In the OSI model, what type of logical data unit does the Data Link Layer (Layer 2) manage?

Easy
A Packets
B Frames
C Segments
D Bits
Hardware PPSC

Correct Answer: B

The Data Link Layer encapsulates network packets into Frames, preparing them for physical transmission as raw bits.

Q648.Which of the following addresses is generated dynamically by the CPU during program execution?

Easy
A Physical address
B Absolute address
C Logical address
D None of these
Hardware PPSC

Correct Answer: C

The CPU generates a Logical (or Virtual) Address which is translated by the Memory Management Unit (MMU) into a physical address in RAM.

Q649.If you have an 18 GB storage partition and subtract 1 GB from it, what is the remaining capacity?

Easy
A 18 GB
B 17 GB
C 16 GB
D 19 GB
Hardware PPSC

Correct Answer: B

Subtracting 1 GB from an 18 GB storage partition leaves exactly 17 GB of storage capacity.

Q650.The computer BIOS (Basic Input/Output System) cannot function without which foundational hardware component?

Easy
A CPU
B Hard Drive
C RAM
D Motherboard
Hardware PPSC

Correct Answer: D

The BIOS resides on a physical ROM or Flash chip mounted on the motherboard; hence, it cannot exist or execute without the motherboard.

Q651.What does the hardware interface abbreviation 'AGP' stand for?

Easy
A Advanced Graphics Port
B Accelerated Graphics Protocol
C Automated Graphics Processor
D Advanced Gaming Platform
Hardware PPSC

Correct Answer: A

AGP stands for Advanced Graphics Port, which is a legacy high-speed slot designed specifically to attach graphics cards to motherboards.

Q652.Which keyboard key moves the cursor from its current position to the very beginning of the next line?

Easy
A Enter key
B Caps lock key
C Delete key
D Backspace key
Hardware PPSC

Correct Answer: A

Pressing the Enter key registers a line break or paragraph break, moving the cursor to the start of the next line.

Q653.Microsoft Office's Clipart consists of a pre-made collection of which of the following?

Easy
A Programmes
B IT tools
C Graphics and images
D None of these
Hardware PPSC

Correct Answer: C

Clip art is a database of pre-made digital drawings, graphics, and visual elements used to illustrate documents.