Which of the following device is useful in a visually challenged person to understand the textual output gene… - Raj. CHO -2025

Raj. CHO -2025

Computer and Nursing Information

Easy

Appeared in: Raj. CHO -2025

Explanation

A Braille display monitor is an assistive technology device specifically designed for individuals who are blind or have severe visual impairments.
It functions as a tactile output device, connecting to a computer and translating the text displayed on the screen into a series of refreshable Braille cells.
The user reads the text by running their fingers over these pins, which dynamically change to represent the content on the screen.
This allows for real-time access to digital documents, websites, and other computer-generated text without relying on sight.

Option A: Plotters are a type of printer that produces a visual output, typically large-scale vector graphics like architectural plans or engineering drawings. They are not suitable for a visually challenged person as they do not provide tactile or auditory feedback.
Option B: Projectors are output devices that display a computer's visual output onto a large screen or surface. This is a purely visual medium and is of no use to a person who cannot see.
Option D: This option indicates that the question was not answered. It is not a type of device and is therefore an incorrect choice in this context.

Visual 1: Image - A close-up of a refreshable Braille display monitor connected to a laptop, showing a person's hands reading the tactile pins. This would clearly demonstrate how the device works.
Visual 2: Diagram - A simple flowchart showing how a screen reader and a Braille display convert digital text into either speech or tactile Braille, illustrating the two main non-visual output methods.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Assistive technology for visually impaired users as background academic context rather than a clinical decision trigger.
While not a clinical nursing question, understanding assistive technologies is vital for patient education and support, especially for patients with sensory deficits.
Nurses may need to help patients with visual impairments access health information, use hospital-provided tablets, or communicate their needs. Knowing about tools like Braille displays or screen readers is part of providing holistic, patient-centered care.
What if the patient has low vision but is not completely blind? In that case, a screen magnifier, which enlarges text and images on the screen, or high-contrast display settings would be more appropriate than a Braille display.

How to Approach the Question

First, identify the core requirement of the question: the user is 'visually challenged' and needs to understand 'textual output'. This means the correct device must provide a non-visual way to interpret text.
Next, evaluate each option based on its output method.
Option A, Plotters, and Option B, Projectors, both produce visual outputs (drawings and images, respectively). Eliminate them as they are unsuitable for a visually challenged user.
Option C, 'Braille display monitors', explicitly mentions Braille, which is a tactile reading system for the visually impaired. This directly matches the user's need.
Option D is a meta-option about test-taking and not a device. Eliminate it.
Conclude that the Braille display monitor is the only device listed that provides a non-visual, tactile method for reading computer text.

Concept Tested & Keywords

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