The Alternate Source Programmer's Journal

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The Alternate Source Programmer's Journal
Categories Computer magazine
Frequency once every two months for a total of six issues a year.
Founder Joni Kosloski,
Charley Butler
Year founded October 1979
First issue January 1980 (1980-01)[1]
Final issue
1984 (1984)[2]
Company TASMON
Country United States
Language English

The Alternate Source, also known as 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; focused on the Model I and Model III, with a few articles relating to the Color Computer.[1][3]

It was published by Charlie W. Butler (d. September 11, 2014) 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 its articles and as such was the "prestige" technical journal of the time. Among its more notable contributors were Jake Commander, Jack Decker, Bruce Hansen, Larry Kingsbury, Dennis Kitsz, Steven Kovitz, Alan Moluf, 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.


  1. ^ a b The Alternate Source, by Matthew Reed,
  2. ^ TRS-80 Magazine: The Alternate Source Magazine, By Ira Goldklang's TRS-80 Revived Site, Collection of covers for all 19 issues
  3. ^ The alternate source : programmer's journal, 102727610, Computer History Museum, Published articles and information relating to Tandy's TRS-80 Model I or Model III computers.