Introduction:
From CPUs to flash storage, contemporary digital hardware is built on semiconductor physics and integrated-circuit fabrication. This statement probes basic awareness of the underlying technology of digital systems.
Given Data / Assumptions:
- Digital systems include processors, controllers, programmable logic, and memory.
- Devices are primarily CMOS-based integrated circuits.
- Discrete logic exists but is far less common for complex systems.
Concept / Approach:
Semiconductors (notably silicon) enable controllable charge transport and switching at nanometer scales, which is essential for logic gates, registers, and interconnect on chips. Transistor density, power efficiency, and reliability make semiconductors the universal substrate for digital electronics.
Step-by-Step Solution:
1) Recognize that logic is implemented with transistors (MOSFETs).2) Integrated processes place billions of transistors on a single die.3) System-level functions (compute, storage, I/O) emerge from semiconductor building blocks.
Verification / Alternative check:
Consult any MCU/FPGA/SoC datasheet: the device technology is CMOS/semiconductor; there is no alternative large-scale base in practice.
Why Other Options Are Wrong:
Incorrect: Contradicts ubiquitous reality of IC-based design.True only for memories: Logic and mixed-signal digital are also semiconductor-based.True only for analog ICs: The claim is about digital systems; analog ICs are a separate category.
Common Pitfalls:
Equating “digital system” solely with CPUs; it also includes controllers, PLDs, and interface ICs.Overlooking discrete transistor logic as a historical/educational niche.
Final Answer:
Correct
Discussion & Comments