User‐Supported Software for the IBM PC
Fredrick Michels, Neil B. Harrison, Douglas B. Smith · Library Hi Tech · 1985
User‐supported software is copywrited and supported by the developer(s) of the software. Users are encouraged to copy and share the software. In return for a “suggested contribution” payable to the software developer, detailed documentation and user support are available. Many quality programs, of this type, exist. Four programs for the IBM PC are evaluated.