Throughput Naming: What Does “14.4 Modem” Mean? A so-called 14.4 modem is named for its nominal data rate. Approximately how many bits per second does it transmit under ideal link conditions on the line side?

Introduction / Context:
Modem model names historically reflected nominal maximum line rates. Interpreting those labels helps set expectations and recognize marketing claims. The classic “14.4” refers to a specific kilobits-per-second class of modems common in the early 1990s.

Given Data / Assumptions:

• The term “14.4 kbps” denotes 14.4 * 10^3 bits per second on the modem-to-modem link.
• Actual throughput after error correction and protocol overhead may be lower or aided by compression to be higher in effective terms.
• We are matching the rough numeric range provided in the choices.

Concept / Approach:

“14.4 kbps” equals approximately 14,400 bits per second. Among the options, the range 14,400–15,000 bps is the only one bracketing the conventional value, making it the best match to the modem's nominal speed class.

Step-by-Step Solution:

Verification / Alternative check:

Historical modem standards (V.32bis) specify a 14,400 bps rate tier, consistent with the name.

Why Other Options Are Wrong:

140–150 and 1400–1500 are far below; 140,000–150,000 is far above. “None of the above” is invalid because a correct approximate range is provided.

Common Pitfalls:

Confusing kilobits with kilobytes per second, or overlooking protocol overhead when estimating real-world throughput.

Final Answer:

14,400-15,000