The device primarily used to provide a hard copy is the?

Appeared in: RRB Staff Nurse Delhi-2015

Explanation

A 'hard copy' refers to a physical, printed document that is tangible.
A printer is an output device specifically designed to take electronic data from a computer and create a physical copy on paper.
Its primary function is to convert a digital file (soft copy) into a permanent, readable format (hard copy).

Option A: A Hard Disk is a primary storage device. It stores data and programs electronically in a digital format (soft copy), but it cannot produce a physical copy.
Option B: The CPU (Central Processing Unit) is the 'brain' of the computer. Its role is to execute instructions and perform calculations; it does not create any form of output, physical or digital.
Option D: A Card Reader is an input device. Its function is to read data from a memory card (like an SD card) and transfer it to the computer. It does not generate any output.

Visual 1: Diagram - A flowchart showing the basic functions of a computer system: Input (Keyboard, Mouse) -> Processing (CPU) -> Output (Monitor, Printer) & Storage (Hard Disk). This helps visualize where each device fits in the process.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Functions of Computer Hardware Components as background academic context rather than a clinical decision trigger.
In a modern hospital, understanding computer hardware is essential. Nurses use printers daily to create hard copies of critical documents.
Examples include printing patient identification wristbands, medication administration records (MARs), lab results, and patient education handouts.
What if the printer is unavailable? The nurse would have to rely on viewing information on a screen (soft copy), which may not be feasible for tasks like applying a wristband or giving a patient a document to take home. This could delay care or impact patient safety, highlighting the importance of functional printers in clinical settings.

How to Approach the Question

First, identify the key term in the question: 'hard copy'. Define what this means (a physical, printed document).
Next, consider the primary function of each option provided.
Categorize each device: Is it for input, output, processing, or storage?
Evaluate which device's primary function matches the need to create a 'hard copy'.
Eliminate the options that are for input (Card Reader), processing (CPU), or electronic storage (Hard Disk), leaving the correct output device (Printer).

Concept Tested & Keywords

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