The Alternate Source Programmer's Journal

The Alternate Source Programmer's Journal was a magazine with deeply technical programming articles, most of which were at the Assembly Language level, for the TRS-80. It was published by Charlie Butler and Joni M. Kosloski of The Alternate Source, a major TRS-80 software publisher, from around 1980 to around 1983. TAS was known for the high intensity level of it's articles and as such was the "prestige" techhnical journal of the time. Among it's more notable contributors were Jake Commander, Jack Decker, Larry Kingsbury, Steven Kovitz, Troy L. Pierce and Gordon Williams.

The meaning behind the name "The Alternate Source" is that TAS set itself up as being an alternative to the official software and information coming from Radio Shack, the manufacturer of the TRS-80.