Which option represents the two most common types of computer monitors?

Appeared in: UPRVUNL - 2021

Explanation

Computer monitors are output devices that display visual information from a computer.
CRT (Cathode Ray Tube) is an older, bulkier monitor technology that uses an electron beam to create images on a phosphorescent screen.
LCD (Liquid Crystal Display) is a modern, flat-panel technology that is lightweight, thinner, and more energy-efficient, using liquid crystals to produce images.

Option A: OCR and OMR are input technologies used for scanning text and marks, not for displaying visual output.
Option C: DVDs and CDs are physical optical storage media used for storing digital files, music, or videos.
Option D: ROM and RAM are types of internal computer memory used for storing data and program instructions, not for visual display.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Types of Computer Hardware Components as background academic context rather than a clinical decision trigger.
Understanding basic computer hardware is essential for nurses to effectively use Electronic Health Record (EHR) systems, patient monitoring equipment, and telemedicine platforms.
Familiarity with display types helps in troubleshooting issues with clinical workstations or mobile devices (Computers on Wheels) used for patient charting and care coordination.
What if? If a hospital needs to equip a mobile cart for bedside charting, an LCD monitor would be the only practical choice due to its light weight, low power consumption, and compact size, allowing it to run on battery power.

How to Approach the Question

First, identify the core concept in the question: 'computer monitors'.
Recall or determine the function of a computer monitor, which is to display visual output.
Evaluate each option to see if it fits the category of a display device.
Option A (OCR/OMR) are input methods. Eliminate this option.
Option C (DVD/CD) are storage media. Eliminate this option.
Option D (ROM/RAM) are memory types. Eliminate this option.

Concept Tested & Keywords

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E6 Nursing Education & Educational TechnologySuresh k Sharma (pp 21-557 of 572) p. 331-333

E6 Textbook of Nursing Management and Leadership I. Clemen — Subpart C (pp 655-967 of 982) p. 37-39

Practise the full UPRVUNL - 2021

Attempt every question from this paper in a timed mock, then review the full solution for each one.