Answer:
ISO - International Standards Organization
ANSI - American National Standards Institute
IEC - International Electrotechnical Commission
Step-by-step explanation:
ISO stands for the International Standards Organization, an independent international body or organization that is responsible for setting common international standards.
ANSI stands for the American National Standards Institute, a private American not-for-profit organization headquartered at Washington, D.C. that is responsible for standardization of systems, processes, products and services of the computer industry in the United States of America.
IEC stands for International Electrotechnical Commission, a quasi-governmental organization that is responsible for standardization of electrotechnology, which includes electronic, electrical, and other related technologies.