What does 'S' stand for in the context of SD cards used in smartphones and cameras? MCQ with Answer and Explanation

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What does 'S' stand for in the context of SD cards used in smartphones and cameras?

A. Speed Digital

B. Static Digital

C. Serial Digital

D. Secure Digital

Answer: Option D

Solution (By JKSSB Mock Tests)

SD card stands for Secure Digital card, a proprietary non-volatile memory card format developed for portable devices.

This question belongs to: Computer Memory and Storage Devices

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Practice More Memory and Storage Devices Questions

Question #1

How many bits are contained within a data block size of exactly 4 Bytes?

A. 32 bits

B. 128 bits

C. 64 bits

D. 16 bits

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Correct Answer: Option A

Explanation:
Since one byte is strictly defined as 8 bits, a 4-byte block contains exactly $4 imes 8 = 32$ bits.

This question belongs to: Computer Memory and Storage Devices

Question #2

Which type of memory is directly accessible by the CPU without going through the bus?

A. Cache

B. Registers

C. Hard disk

D. RAM

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Correct Answer: Option B

Explanation:
Registers are internal to the CPU and are directly accessible by the CPU's arithmetic/logic unit, providing the fastest possible access.

This question belongs to: Computer Memory and Storage Devices

Question #3

Which of the following is a non-volatile memory technology that retains data even when power is off?

A. Flash memory

B. SRAM

C. DRAM

D. SDRAM

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Correct Answer: Option A

Explanation:
Flash memory is non-volatile. DRAM, SRAM, and SDRAM are volatile and lose data without power.

This question belongs to: Computer Memory and Storage Devices

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