This listing is for an original Apple Computer, Inc. Developer Technical Support document set, consisting of Apple II and Macintosh Technical Notes from 1990–1991, distributed directly by Apple to registered developers.

These documents were never retail products and were issued internally through Apple Developer / APDA channels, making them highly desirable to collectors of early Apple history, software development, and pre-internet technical documentation.

• Apple II Technical Notes

  • “About Apple II Technical Notes”

  • Dated May 1990 and March 1991

• Macintosh Technical Notes

  • “About Macintosh Technical Notes”

  • Dated February 1991

• Supplemental technical notes covering:

  • System software revisions

  • File types & resource handling

  • Developer APIs

  • Sample code references

  • Apple II GS / GS-OS references

  • Macintosh system internals

• Original hole-punched Apple developer pages

• Still sealed in original Apple plastic sleeves

• No writing, highlighting, or missing pages

• Paper is clean and flat with normal age toning

• Plastic sleeves show light storage wear

• Includes original Apple mailing/document sleeves (shown in photos)

• Authentic Apple developer documentation from the transition era (Apple II → Macintosh)

• Primary-source material used by real developers in the late 80s / early 90s

• Much harder to find complete, sealed sets versus loose photocopies

• Excellent archival or display piece for:

  • Apple historians

  • Vintage computer collectors

  • Software development archives

  • Museums or personal IMPORTANT NOTES

    • Documents only — no disks, no hardware, no manuals beyond what is shown

    • Sold as a collectible / archival item

    • Please review all photos carefully; photos are part of the description