Skip to content
Timex/Sinclair Computers

The Authoritative Website for Timex/Sinclair Computers

Home » Publications » Periodicals » Interfacing Tips and Troubles: Memory Mapped I/O on the Sinclair ZX81
  • Search
  • Computers
    • Sinclair
      • Sinclair ZX80
        • Articles
        • Books
        • Hardware
        • Software
        • Advertisements
      • Sinclair ZX81
        • Articles
        • Advertisements
      • Sinclair QL
        • Hardware
        • Software
      • Cambridge Z88
    • Timex
      • Timex/Sinclair 1000
        • Articles
        • Books
        • Hardware
        • Software
          • TCC Software for the Timex/Sinclair 1000 and 1500
          • Downloadable Software
        • Advertisements
      • Timex/Sinclair 1500
        • Articles
      • Timex/Sinclair 2068
        • Articles
        • Books
        • Hardware
        • Reference and Technical Information
        • Software
          • TCC Software for the Timex/Sinclair 2068
          • Downloadable Software
        • Advertisements
    • Other
      • MicroAce
        • Hardware
        • Articles
        • Software
        • Books
      • Lambda 8300
  • Downloadable Software
    • ZX81/TS-1000
    • TS-2068
  • Publications
    • Books
    • Periodicals
      • Timex/Sinclair Magazines and Newsletters
      • General Computing Publications
      • Academic Periodicals
      • News Periodicals
    • Documents
  • Companies
    • Sinclair
    • Timex
    • View All
  • Products
    • Hardware
    • Software
    • Accessories & Miscellaneous
  • Community
    • Online User Group
    • User Groups
    • People
    • Events
  • About
    • What’s New?
    • How You Can Help
    • Shop
    • Privacy Policy
  • Blog

Interfacing Tips and Troubles: Memory Mapped I/O on the Sinclair ZX81

Authors

Neil Bungard

Publication

The Computer Journal

Pub Details

Issue: 17

Pages

28-29

Memory-mapped IO on a Timex/Sinclair computer.

Related Articles

  • Interfacing Tips and Troubles: Interfacing the Sinclair Computers, Part One
  • Interfacing Tips and Troubles: Interfacing the Sinclair Computers, Part Two

Tags

The Computer Journal Hardware project TS 1000 TS 1500 TS 2068 ZX81

People

Neil Bungard

Recent Posts

  • Pro/File +5: The Machine-Code ModuleJune 7, 2026
  • Two Decades of Timex/Sinclair WisdomJune 5, 2026
  • Minesweeper for the Timex/Sinclair 2068June 5, 2026
  • Making the Timex/Sinclair 1500May 24, 2026
  • The NEC Technical Literacy SeriesMay 9, 2026

Support This Site

Subscribe

* indicates required
Interests
/* real people should not fill this in and expect good things - do not remove this or risk form bot signups */

Intuit Mailchimp

Creative Commons License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
↑