Sony HBI-55
This page was last modified 10:45, 13 November 2017 by Mars2000you. Based on work by Gdx and Msxholder and others.


The Sony HBI-55 is a data cartridge identical to the UDC-01 from Yamaha. It is used to store the data of the Personal Databank that comes with the following Sony computers:

The Personal Databank software is provided on tape for the HB-501 while it's built-in for all the other mentioned machines.

The data are saved on a 4kB SRAM (Static RAM) and a little battery preserves them when the computer is off.

Little BASIC programs can also be saved on this cartridge and you can load / run them from the cartridge, with the commands SAVE"CAT:" and LOAD"CAT:".


Sony HBI-55 box
Sony HBI-55 box, cartridge and manual
Sony HBI-55 cartridge
Sony HBI-55 box, cartridge and manual