Gate naming conventions: Confirm whether the standard abbreviation for the exclusive-OR gate is “XOR.”

Introduction / Context:
Across textbooks, datasheets, and CAD libraries, consistent abbreviations help engineers interpret schematics quickly. The exclusive-OR function is pervasive in adders, parity circuits, and comparators, so its standardized shorthand is important.

Given Data / Assumptions:

• Exclusive-OR is a logic operation with symbol often drawn as OR with an additional curved line.
• Written symbols include the circle-plus and alphabetic abbreviations.

Concept / Approach:
“XOR” is the widely adopted abbreviation for exclusive-OR in signal names (e.g., XOR2), IP block names, and HDL code comments. Alternatives like “EOR” appear historically, but XOR is dominant in digital design practice.

Step-by-Step Solution:

Verification / Alternative check:
Look at HDL operators: in many languages, the caret ^ denotes XOR, and library cell names include “XOR.”

Why Other Options Are Wrong:

Common Pitfalls:
Confusing XOR with OR; misreading XNOR (exclusive-NOR) as XOR.

Final Answer:
Correct