Meaning of TTL: The acronym “TTL” is expanded as “transistor-technology-logic.” Decide whether this expansion is accurate in digital electronics.

Introduction / Context:
TTL is one of the classic digital logic families widely used in 74xx integrated circuits. Knowing the correct expansion of the acronym helps avoid confusion in documentation, procurement, and study materials.

Given Data / Assumptions:

• “TTL” is a standard term in digital logic.
• It refers to how the gates are constructed internally.
• The expansion appears in manufacturer datasheets and textbooks.

Concept / Approach:
TTL stands for “transistor-transistor logic,” not “transistor-technology logic.” The name reflects the use of bipolar junction transistors for both the input logic and the output stage (as opposed to older resistor-transistor logic, RTL, where resistors provided input combining).

Step-by-Step Solution:

Verification / Alternative check:
Check any 74xx family datasheet or a standard digital design text; the name is uniformly given as “transistor-transistor logic.”

Why Other Options Are Wrong:
“Correct” repeats the wrong expansion. Packaging or specific subfamilies (LS, ALS, S, F) do not alter the acronym’s meaning.

Common Pitfalls:
Assuming “technology” appears in the term; confusing logic family naming with semiconductor processes or packaging.

Final Answer:
Incorrect