Difficulty: Easy
Correct Answer: Correct
Explanation:
Introduction / Context:Sequential logic relies on memory elements and clocks to implement operations that depend on past states. Many standard ICs integrate these functions, enabling counters, shift registers, and finite state machines.
Given Data / Assumptions:
Concept / Approach:ICs like the 74xx/40xx families provide ready-made sequential building blocks. With clocked flip-flops internally, they implement counting (divide-by-N), shifting (data movement and serialization), and more complex behaviors, often with clear timing specs.
Step-by-Step Solution:
Identify sequential primitives (flip-flops) within ICs.Counters combine flip-flops and logic to increment/decrement states.Shift registers chain flip-flops to move data with each clock.Therefore, ICs do perform counting and shifting.Verification / Alternative check:Reference standard parts: 7490/74HC590 counters; 74HC164/74HC595 shift registers; microcontrollers integrate extensive sequential subsystems.
Why Other Options Are Wrong:
Incorrect: Contradicts widespread standard devices.Only true for analog ICs or only for programmable logic: Both false; fixed-function digital ICs also perform these operations.Common Pitfalls:Assuming only CPUs can perform sequential tasks; ignoring propagation delays and setup/hold in cascaded sequential stages.
Final Answer:Correct
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