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Welcome to the Z88 User Guide.

This is the revised Z88 User Guide for OZ ROM, being updated with all new features that has been added into the ROM, both on application and system level by the Z88 Development Team since the last official V4.0 UK ROM was released by Cambridge Computer in 1989.

The Z88 Development Team reverse-engineered the V4.0 ROM into source code and after thirteen years of development, substantial re-organisation and optimisation of the existing OZ code base, the work is finally ready, fulfilling many of the original end-user wishes expressed in the independent end-user "Z88 EPROM" publishing made available in the early nineties.

Improvements include the following:

  • Save and Load Files directly to the File Area - no need to save the file to RAM first. Use :EPR:1, 2 or 3 from directly from the Application. (From OZ 4.7)
  • Run Application in RAM - No need to have applications in Flash or EPROM card, just get and use RAM. 
  • Multiple Language & Keyboard selection - The popular foreign ROM's can now be selected; choose from a range of countries, use different keyboard layouts and see the change of languages in the localized date names in the Clock, Calendar and Diary
    • Supported languages are:- UK (default) USA, French, German, Spanish, Italian, Danish, Norwegian, Swedish and Finnish
  • Fast Serial Port - all speeds and protocols supported with reliable file transfer up to 38400 baud
  • Eazylink2 connects to 21st century Desktop computers with support for the original file transfer Imp/Export popdown
  • XMODEM and YMODEM protocol added to Imp/Export popdown
  • BBC BASIC V3.10. Now includes the "patch" integration from the V2.2 / V3 UK ROM
  • Fast Backup using Flash cards support in Filer and Flashstore. Flash cards are FORMATTED by the Z88 itself. - No need to use EPROM Cards or the EPROM Eraser to FORMAT them
  • Terminal supports all VT52 commands
  • Main HELP pages repopulated and expanded  from ROM V3.0 UK (from OZ 4.0) - Click here to see a small movie of the HELP added

  • System Info page in Index that displays OZ build release information, battery status and free system resources

  • Alarms can be saved to file (for backup and restore across soft reset)

  • EPROM is checked that it is empty before cataloguing the first time

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