The International Apple Core was created by Apple Computer in October 1979 as a way to put User Groups in touch with each other and in order to get some of the resources available to more user groups. Val J. Golding who was originally from San Francisco and the founder of Apple Pugetsound Program Library Exchange (A.P.P.L.E.) acted as the President of the group and was influential in the items that made their way into the Magazine produced by IAC.
The IAC produced floppy disks which made their way into many groups around the country. However, the idea of the IAC was very short lived and lasted only a few years.
The IAC while created in 1979 did not produce a magazine until March 1980. Volume 1 Number 1 featured the now famous iron on Apple Pascal transfer sheet. While it was a fun bit of Apple items, it was more impractical than anything else.
A second issue would be produced in September 1980. At this point, the IAC started a quarterly schedule for releases. This would last until the spring of 1982 when they began to produce the magazine on a bimonthly basis.
The production schedule would ramp up once again in 1983 when Monthly production was adapted beginning in February. After that, production would only last a year with the last known issue being Volume 5 Number 3 which was produced in March 1984.
While the IAC was disbanded in 1984, it has been replaced in current times by Apple Users Group Services within Apple, Inc. (Formerly known as Apple Computer, Inc.. But for a time, the IAC was among the top resources for Apple II users groups and their members.