411 REFERENCE · Wikipedia
.abc
Reference material by Wikipedia contributors. This retains its source identity and is not 411 news reporting.
.abc is the name of several file extensions:
.abc (ActionScript), or ActionScript Byte Code, used in virtual machines
.abc (Alembic), a computer graphics file format
.abc (Clean), an intermediate compiling language used in Clean
.abc (music notation), a language for notating music using ASCII characters
See also
ABC (disambiguation)