A storage device, which loses data when power supply is stopped, is called _____ memory

Appeared in: AIIMS BHOPAL NO- 2018( Shift-2nd)

Explanation

Volatile memory is defined as computer storage that only maintains its data while the device is powered.
When the power supply is interrupted or turned off, the information stored in volatile memory is lost.
The most common example of volatile memory in a computer is Random Access Memory (RAM), which serves as the system's 'working memory'.

Option B: Static memory, or SRAM, is a specific type of volatile memory. The question asks for the general term, not a specific implementation.
Option C: Dynamic memory, or DRAM, is another specific type of volatile memory. The question asks for the broader category.
Option D: Secondary memory is typically non-volatile, meaning it retains data without power. This is the opposite of the characteristic described in the question.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Types of computer memory and their data retention properties as background academic context rather than a clinical decision trigger.
While this is a non-clinical question, understanding the concept is crucial for anyone using computers in a healthcare setting.
Patient data entered into an application is held in volatile memory (RAM). If the computer loses power before the data is saved to a hard drive (non-volatile memory), that information will be lost.
This highlights the importance of regularly saving work and using uninterruptible power supplies (UPS) for critical computer systems in hospitals to prevent data loss during power outages.

How to Approach the Question

First, identify the key phrase in the question: 'loses data when power supply is stopped'.
This phrase is the definition of a specific category of computer memory.
Recall or deduce the term for this characteristic. 'Volatile' means temporary or likely to change, which fits the description.
Evaluate the other options. 'Static' and 'Dynamic' refer to specific types of RAM (which is volatile), making them too specific.
'Secondary' memory refers to long-term storage (like a hard drive), which is non-volatile (it keeps data without power).
Therefore, 'Volatile' is the most accurate and general term for the described characteristic.

Concept Tested & Keywords

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E6 Essentials of Educational Technology Nursing EducationL Gopichandran C Kanniammal (pp 39-344 of 355) p. 201-203

E6 Psychology Baron Misra 5e Part 1 pp. 207-209, 211-213

Practise the full AIIMS BHOPAL NO- 2018( Shift-2nd)

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