Which of the following is a type of memory that can be erased by exposing to ultraviolet light? MCQ with Answer and Explanation

Question
Which of the following is a type of memory that can be erased by exposing to ultraviolet light?
A. Flash
B. EPROM
C. EEPROM
D. PROM
Answer: Option B
Solution (By JKSSB Mock Tests)
EPROM (Erasable Programmable ROM) is erased by ultraviolet light through a quartz window. EEPROM is electrically erased.
This question belongs to: Computer Memory and Storage Devices
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Practice More Memory and Storage Devices Questions

Question #1
Which of the following is a type of memory that uses magnetic domains to store data?
A. CD-ROM
B. DRAM
C. Flash memory
D. Hard disk
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Correct Answer: Option D

Explanation:
Hard disks store data magnetically on platters. Flash uses charge traps, optical uses pits, DRAM uses capacitors.
This question belongs to: Computer Memory and Storage Devices
Question #2
What is the purpose of a memory buffer?
A. To increase memory capacity
B. To temporarily hold data during transfer
C. To permanently store data
D. To convert data formats
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Correct Answer: Option B

Explanation:
A memory buffer is a temporary storage area used to hold data while it is being transferred between different devices or between different speeds, to smooth out data flow.
This question belongs to: Computer Memory and Storage Devices
Question #3
In the context of memory, what does 'volatile' mean?
A. Memory requires power to retain data
B. Memory cannot be written
C. Memory retains data without power
D. Memory is permanent
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Correct Answer: Option A

Explanation:
Volatile memory loses its stored data when the power supply is turned off. RAM is a classic example of volatile memory.
This question belongs to: Computer Memory and Storage Devices
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