ITPEC FE Morning October 2019 Question 23
ITPEC FE Morning October 2019 — Question 23 of 80
Flash Memory — non-volatile memory that is electrically erased in block units.
Why (b):
- Flash memory stores data without power and supports electronic block-level erasure
Why not others:
- (a) Describes EPROM — erased by ultraviolet rays
- (c) Describes SRAM — fast rewrite, used for CPU cache
- (d) Describes DRAM — requires periodic refresh to retain data
Key rule: Flash = electrically erasable in blocks; EPROM = UV erasure; EEPROM = byte-level electrical erasure; DRAM = periodic refresh; SRAM = fast, no refresh, used for cache.
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