I recently bought a lot of old LEGO dacta teaching materials from the 80’s, among them book 9760 which is a ring binder from 1989 containing pages of documentation in Danish for programming the LEGO 70455 “Interface A” box from a Commodore 64/128 computer. ISBN is 87-7737-000-7.

I have scanned the book and you can get it from here (197 pages, 108 MB). Please report any errors to me.

Accompanying this book is a floppy disk with software for Commodore 64/128 computers.

The disk has been ripped and you can get it from here as a D64 image (170 KB).

The rip was done without errors, but is unknown at this point whether or not the contents are actually working. It requires a Comal 80 version 2.01 cartridge installed, and you can start it with

load"linker"

I don’t have a real computer to test it on, and running it in the VICE emulator makes it hang under loading the controller software. Please contact me if you get the software running.

About the restauration:

The pages of the binder are photocopies, and due to some chemical process occurred during storage for many years (most likely a reaction with the plastic of the binder), the ink on the last pages have become sticky, and the pages stick together, almost impossible to take apart without destroying the print. Partially soaking the pages in IPA, I was able to pull them from each other with only slight damage, but a lot of graphical work have gone into restoring the contents. Here are a few examples: Move the slider to switch between “before” and “after”. Later in the process, the pages get converted into black-and-white and scaled down into grayscale to get a smooth, high contrast image with as few artifacts as possible. Enjoy!