Context statement — role of digital circuitry: Evaluate the claim: “Digital circuitry is the foundation of digital computers and many automated control systems.” Give a brief justification rooted in system architecture.

Introduction / Context:
Modern computing and automation rely on digital hardware blocks—logic gates, sequential elements, buses, and memories. Even systems with significant analog content typically integrate digital controllers for decision making, timing, and communication.

Given Data / Assumptions:

• Digital computers are composed of CPUs, memory hierarchies, and interconnect implemented with digital logic.
• Automated control systems widely use microcontrollers, FPGAs, PLCs, and digital signal processors.
• Analog subsystems (sensing/actuation) are often interfaced via ADC/DAC to digital cores.

Concept / Approach:
The statement aligns with how decision logic, programmability, error detection, and networking are realized: digital circuitry provides robustness and repeatability. Analog circuitry remains essential for transduction and power, but digital blocks orchestrate system behavior at scale.

Step-by-Step Solution:
Identify computing cores (ALU, control unit) → digital.Note control platforms (PLCs, MCUs) → digital logic with I/O conditioning.Observe pervasive digital communication (I2C/SPI/CAN/Ethernet).Conclude the statement is correct in mainstream architectures.

Verification / Alternative check:
Architecture block diagrams of CPUs and PLCs show digital logic heart with analog front-ends for sensors/actuators.

Why Other Options Are Wrong:
Limiting correctness to MCUs ignores PLCs, FPGAs; claiming analog dominance for all control contradicts practice in industrial and embedded domains.

Common Pitfalls:
Framing digital and analog as mutually exclusive rather than complementary; overlooking mixed-signal integration.

Final Answer:
Correct