Difficulty: Easy
Correct Answer: Correct
Explanation:
Introduction / Context:Digital systems rely on memory devices to retain information as bits. This question probes the foundational idea that mainstream digital memories represent and store data in binary form, which underpins addressing, data buses, and logic design.
Given Data / Assumptions:
Concept / Approach:In digital electronics, data is encoded as logic 0/1. Memory cells—be they cross-coupled inverters (SRAM), charge on a capacitor (DRAM), or floating-gate charge (Flash)—store information as one of two stable states recognized by sense amplifiers. System organization (addresses, words, buses) is built on binary arithmetic and Boolean logic.
Step-by-Step Solution:
Identify what “store” means: hold a state reliably over time.Relate device physics (charge, latch state) to logical levels (0 or 1).Recognize that read/write operations manipulate these two states.Conclude that memory devices in digital systems store binary data.Verification / Alternative check:Datasheets specify VOH/VOL, VIH/VIL, noise margins, and bit-wide word organizations, all consistent with binary state storage. Even multi-level NAND Flash presents data to the controller as binary after threshold decoding.
Why Other Options Are Wrong:
Common Pitfalls:Confusing physical storage (charge magnitude) with logical representation; assuming multi-level cells are “non-binary”—they still decode to binary bits at the interface.
Final Answer:Correct
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