Terminology for oscillators: An astable multivibrator is sometimes referred to as a clock because it free-runs and produces a continuous train of pulses. Evaluate the statement.

Introduction / Context:
Many digital systems need a periodic timing reference. An astable multivibrator, whether discrete or IC-based, generates a continuous sequence of pulses without external triggering and is frequently used as a simple clock source.

Given Data / Assumptions:

• Astable = no stable state; the circuit oscillates continuously.
• Output is a periodic waveform (square/rectangular) suitable for driving counters and flip-flops (with level/edge conditioning as needed).
• Frequency determined by component values or internal timing cells.

Concept / Approach:
Because it generates pulses at a set frequency, an astable multivibrator serves as a clock for simple applications. More precise systems may use crystal oscillators, PLLs, or clock generator ICs, but the terminology of “clock” for an astable source is common and practical.

Step-by-Step Solution:

Verification / Alternative check:
Classic 555 in astable mode, or two-inverter RC oscillators, are routinely described as clocks in educational and hobbyist circuits.

Why Other Options Are Wrong:

Common Pitfalls:
Assuming “clock” requires crystal accuracy; neglecting buffering/shaping needed to meet logic-level specs for different families.

Final Answer:
Correct