It doesn't stand for anything. Ada was named after a woman who was purportedly the first computer programmer. On the other hand, "ADA" does stand for something:
ADA American Dental Association
ADA American Diabetes Association
ADA Americans with Disabilities Act of 1990
ADA Acquisition Decision Authority
ADA Action for Dysphasic Adults
ADA Activity Discard Acknowledgment
ADA Actual Date of Arrival
ADA Adana, Turkey - Adana (Airport Code)
ADA Add/Drop Amplifier (Pirelli)
ADA Additional Drill Assemblies
ADA Adenosine Deaminase
ADA Advanced Data Analysis
ADA Advanced Delivery Alert
ADA Advisory Area
ADA Aeronautical Development Agency (India)
ADA After Date of Award
ADA Age Discrimination Act of 1975
ADA Agents Draft Authority
ADA Air Defense Area
ADA Air Defense Artillery
ADA Airborne Data Automation
ADA Alberta Dental Association
ADA Alert Dispersal Area
ADA Alternative Discipline Agreement
ADA Alternative Distribution Alliance
ADA American Dairy Association
ADA American Dance Awards
ADA American Decency Association
ADA American Dietetic Association
ADA Americans for Democratic Action
ADA Amiga Demoscene Archive
ADA Analog/Digital/Analog
ADA Another Darn Acronym
ADA Anti-Deficiency Act (DoD Regulation 7000)
ADA Anti-Discrimination Association (Ulster)
ADA Application Domain Authority
ADA Area Defense Administrator
ADA Assistant District Attorney
ADA Asymptotic Diophantine Approximation
ADA Atmospheric Decision Aid
ADA Atomic Development Authority
ADA Audio Design Associates
ADA Australian Dental Association
ADA Automatic Data Acquisition
ADA Automatic Delivery Alert
ADA Average Daily Attendance
ADA Aviation Data and Analysis (system)
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