About ZX81
Welcome to a taste of early 1980s home computing. This app focuses on the Sinclair ZX81 experience and is loaded with example software. Background: In 1980 the British company Science of Cambridge (later rena
Welcome to a taste of early 1980s home computing.
This app focuses on the Sinclair ZX81 experience and is loaded with example software.
Background:
In 1980 the British company Science of Cambridge (later renamed Sinclair Research) released the Sinclair ZX80 home computer. The computer was developed with another technology company, Nine Tiles, and manufactured in a Timex Corporation factory in Dundee, Scotland. Followed in March 1981 by the even more popular successor, the Sinclair ZX81, both models had a profound impact on home and hobbyist computing in the UK and many other countries. Timex Corporation and Sinclair Research continued their joint venture and released the Timex Sinclair 1000 (TS1000) and 1500 (TS1500) variants of the ZX81 for the US market in July 1982 and July 1983 respectively.
Meanwhile, another iconic British home computer, the Sinclair ZX Spectrum, was under development and hit the market in April 1982... but that's another story.
Special thanks to Nine Tiles for granting permission to include the ROM code, to which they retain the intellectual property rights after all these years.
Additionally, many thanks to all the developers of the loaded ZX81 software who have all granted permission to include their titles in the app. We hope this list of software will continue to grow in future updates.
Apr 6, 2024
Version 1.13.5
Enables ZX81/ZX80 program file loading (iOS/iPadOS 14+).
Previous Versions
Here you can find the changelog of ZX81 since it was posted on our website on 2021-12-16 10:53:20.
The latest version is 1.13.5 and it was updated on 2024-04-22 08:33:53. See below the changes in each version.
ZX81 version 1.13.5
Updated At: 2024-04-06
Changes: Apr 6, 2024
Version 1.13.5
Enables ZX81/ZX80 program file loading (iOS/iPadOS 14+).
ZX81 version 1.13.3
Updated At: 2023-11-27
Changes: Nov 27, 2023
Version 1.13.3
• Refinements to the simulated computer fonts option in the app user interface: adds a ZX80 option, now supports all ZX81 characters, reimagined characters to support other languages, and using the fonts in the memory dump viewer.
• Updated Sebastien Andrivet’s Factory game.
• Dr Beep’s USCII utility and LUNAPARK81 game.
• 3D Star Raid game by Bukster Games.
• Paul Daniels' games: QFrogger, QDepthCharge.
ZX81 version 1.13.2
Updated At: 2023-05-27
Changes: May 27, 2023
Version 1.13.2
Bug fix when switching between simulated computers with different logos or keyboard styling.
ZX81 version 1.13.0
Updated At: 2023-05-15
Changes: May 15, 2023
Version 1.13.0
• iPadOS Multi-window support added for the Z80 debugger (tap on the emulated screen to reveal the debugger option).
• Export option from the saved slots to create .z81 snapshot files for the EightyOne emulator.
• Updated tape player functionality to avoid a fade in transition - special thanks to Stéphane Blanchonnet for reporting the problem and testing the fix.
• The latest programs from Johan Koelman: 10=, Bouncing Dots, TRICDEL, YAHTK, Cubic Maze.
• Dungeons of Zedd game by Walter Ariel Risi.
• Escape from Tokat Dungeon game by Salvatore Andamio.
• BattleZXone game by Bukster Games.
• Krystal graphics demo by Nickmann László.
• Rock Crush II: The Power Of Dan (2022) game by Steven McDonald.
ZX81 version 1.12.2
Updated At: 2022-09-18
Changes: Sep 18, 2022
Version 1.12.2
• More stability fixes
• RetroSnake game by Camilo Eid Jordán
ZX81 version 1.12.1
Updated At: 2022-07-31
Changes: Jul 31, 2022 Version 1.12.1
• Corrected:
- multiple crash scenarios.
- physical keyboard support and screenshot saving for macOS (can be installed on Apple Silicon Macs with an iPadOS interface layout).
- mapping of physical quote key when the ZX80 ROM is selected.
Special thanks to Allan McLeod for reporting problems and testing changes.
• Super Shogun game by Dr Beep.
• All of Simon Fawkes' games: Death Trap, Dodge It, Fun Fair Adventure, Pengy, Tablets of Hippocrates, Trojan Dragon.
ZX81 version 1.11.2
Updated At: 2022-03-29
Changes: Mar 29, 2022 Version 1.11.2
• Japanese translation by Shigeru Kumokoshi
• Option to jump to specific addresses in the debugger memory dump view (suggested by Jacob Krall)
• Moskão Fighter game by Kelly Murta
• Updated version of Against the Elements game by Paul Farrow
ZX81 version 1.11.1
Updated At: 2022-01-02
Changes: Jan 2, 2022 Version 1.11.1
• Fixed the lists styling in the Z80 debugger views for iOS/iPadOS 15
• Editing functionality for the bytes displayed in the Memory Dump debugger view
• Roger Dymond’s games: Beetle, Fox and Geese, Ludo, Noughts and Crosses, Snakes and Ladders
• Dr Beep’s games: Reaction, Slingshot Sam, Kayak, Sir Clive
ZX81 version 1.11.0
Updated At: 2021-09-20
Changes: Sep 20, 2021 Version 1.11.0
• New functionality to convert P files to tape audio for real ZX81 computers
• Tweaks for OS & iPadOS 15
• Bitnamic Software’s 2019 deluxe version of Em Busca dos Tesouros (Treasure Quest)
• John Newcombe’s ZX Reactor simulator
• Dr Beep's Apple Pie game
Disclaimer
Official App Store Link
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