iAltairHD1.23 - App Store

iAltairHD pretends to be a MITS Altair 8800 computer and gives you a glimpse how old operating systems like CP/M 2 have felt. It is fully loaded with software but please note that the system is completely self contained and this means that you cannot remotely add any code.

If you want to play a classic text based adventure game such as Zork, talk to Eliza, play Startrek, do a little bit of WordStar or create a little program in Basic or TurboPascal, iAltairHD is for you.

The iAltairHD computer supports
- 8080, Z80 and 8086 CPU
- Basic VT100 terminal emulation for full screen editors and games
- CPU speed throttling for classic terminal games
- Dropbox integration for disk backup

The following software is included:
- Altair Basic (4k and 8k) and Altair DOS
- CP/M 2 with Basic, Pascal MT+, Prolog, TurboPascal, WordStar, VEDIT screen editor, Multiplan, dBASE II, a collection of classic Basic games and text based adventures
- CP/M 3 with the possibility to exchange data between CP/M 2 and CP/M 3
- CP/M 86 with VEDIT and Pascal MT+ 86
- MS-DOS 1.25 with Basic-86 and Perfect Writer

Version History • Changed the backup destination from DropBox to iCloud. IMPORTANT: If you have made a backup and still need it, you should restore the backup prior to upgrading. Alternatively, you upgrade, create a new backup and replace the file backup_ijkl in the iAltairHD folder in your iCloud drive with the one from DropBox. 1.23 Jan 7 • Increased paste buffer size 1.22 03/15/2024 • Improved layout for 12.9-inch iPad 1.21 03/10/2023 • Small technology refresh 1.20 06/08/2022 • Improved contrast in dark mode 1.19 12/05/2021 • Upgrade to latest Dropbox SDK
• Support for new iPad mini 1.18 09/29/2021 • Dark Mode support 1.17 01/10/2021 • Technology refresh 1.16 11/23/2020 • Technology update 1.15 09/26/2020 - General compatibility updates
- Update to latest Dropbox API 1.14 08/23/2018 - Under the hood improvements for better compatibility 1.13 08/23/2018 - Compatibility updates for iOS 10
- Update for new Dropbox API 1.12 10/31/2016 Small compatibility updates for iOS 9 1.11 10/02/2015 - Small bug fixes 1.10 12/21/2014 - Minor bug fixes 1.9 08/06/2014 - Use the spread / pinch gesture in portrait mode to increase / decrease the terminal screen.
- Minor enhancements 1.8 07/09/2014 Updated for iOS 7 1.7 10/10/2013 - Support for pasting into terminal view and improved cursor display
- Start in landscape mode now works properly
- Clean up of Altair DOS and explanation of how to use the FORTRAN compiler 1.6 02/20/2013 - Bug fix in look & feel for Cursor Key Configuration
- Added cursor key settings for the game of "Ladder"
- Workaround for iOS 6 bug creating extraneous 'p' for return key
- Updated documentation
- dBASE II (Ver 2.4) on CP/M 2 disk M:. Note that you need to Restore to activate disk M: and keep in mind that this will restore all disks except I:, J:, K: and L: to their original state. So you should copy any changed files to these disks if you want to keep them.
- Perfect Writer 1.05 for MS-DOS 1.25 is now properly configured for a VT100 terminal. You need to use Restore to activate the updated MS-DOS 1.25 disks. 1.5 01/05/2013 - Added configurable cursor control keys to make better use of applications such as Turbo Pascal or WordStar 1.4 11/11/2012 Dropbox integration for backup of the CP/M disks I:, J:, K: and L: 1.3 07/19/2012 - Added screen editor VEDIT to CP/M 2 disk C:. Note that you need to Restore CP/M 2 in order to obtain the modified disk C:. As this will restore all disks with the exception of I:, J:, K: and L:, you should copy any changed files you want to preserve to one of these disks.
- Bug fix in font color chooser 1.2 06/05/2012 - iOS 5 compatibility enhancement
- User can choose font color 1.1 10/20/2011 1.0 02/22/2011