Computer Hardware MCQs for Patwari
Practice Computer Hardware under Computers for Patwari with 20 free MCQs in Hindi and English.
Patwari — Computer Hardware
20 Questions • Instant results & explanations • Hindi & English
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Question 1 of 20
What primarily converts analog light waves into a digital format in an optical scanner?
Question 2 of 20
What is the exact physical mechanism responsible for detecting X and Y axis movement in an older legacy mechanical mouse?
Question 3 of 20
Which specific hardware configuration acts as the essential 'Gateway' preventing a computer from existing as a functionally 'isolated entity'?
Question 4 of 20
Match the following computer display metrics with their accurate definitions: List-I a. Response Time b. Refresh Rate c. Resolution d. Dot Pitch List-II 1. Total number of horizontal and vertical pixels. 2. Diagonal distance between two pixels of the same color. 3. Number of times per second the screen image is redrawn. 4. Time taken for a pixel to change colors.
Question 5 of 20
During a complex mathematical algorithm, the CPU requires immediate, high-speed data caching to prevent processing bottlenecks. Which component is natively engineered to provide this specific service?
Question 6 of 20
Which of the following keys inherently functions as a hardware switch that persistently alters a specific typing state until pressed a second time?
Question 7 of 20
Which of the following state-level administrative or clerical services is explicitly mentioned as requiring a nuanced understanding of computer hardware?
Question 8 of 20
Which specific hardware components utilize electrostatic charges (positive and negative) as their primary method of image formation?
Question 9 of 20
Which specific device causes 'Gorilla arm syndrome', and why?
Question 10 of 20
Assertion (A): A Barcode Reader inherently possesses internal circuitry that understands human intent without binary translation. Reason (R): It is an Automatic Input Device that captures data directly from the environment.
Question 11 of 20
Given below are two statements, one labeled as Assertion (A) and the other as Reason (R). Assertion (A): Headphones and speakers cannot function properly solely using the pure binary digital data processed by the CPU. Reason (R): Acoustic output devices require physical movement to push air; thus, the digital data must first be converted into an analog alternating current to drive their electromagnets. Choose the correct option:
Question 12 of 20
Which of the following devices structurally consists of a primary vertical stick designed to pivot extensively on a stationary base?
Question 13 of 20
Consider the following statements regarding the operation of a Barcode Reader: 1. It directs a laser beam or LED light across printed barcodes. 2. The dark bars reflect the light, while the white spaces absorb it. 3. An internal photodiode measures the intensity of the reflected light. Which of the statements given above is/are correct?
Question 14 of 20
Which of the following physical materials serves as the base layer into which microscopic pits and lands are pressed or burned to create an Optical Storage disc?
Question 15 of 20
Assertion (A): Storage Devices like HDDs and SSDs play a critical role in data translation by converting complex machine binary code into human-readable text documents. Reason (R): The Core Triad dictates that all primary and secondary memory components must translate analog signals before routing them to the Central Processing Unit.
Question 16 of 20
Which characteristic best separates 'hardware' from 'software' in an architectural sense?
Question 17 of 20
A hardware peripheral is defined primarily by its ability to permit users to supply information, data, or control signals. What is the fundamental requirement for this device to work with the computer?
Question 18 of 20
Consider the following statement: 'The user must physically press keys, move a device, or touch a screen.' This statement acts as the foundational definition for which hardware category?
Question 19 of 20
What is the specific internal component of a DLP (Digital Light Processing) projector that manipulates the light source to form the projected visual image?
Question 20 of 20