I had a modular micro Zorba and a TRS80 4p portable dropped of today.
Looking at the zorba website
http://www.zorba.z80.de/telcon.htm
there is mention that the disks are also available from Don Maslin.
Large pile of software and disks with them to play with this Friday.
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Collector of vintage computers
http://www.ncf.ca/~ba600
Looking for: PICMG backplane
Open Source Weekend
http://www.osw.ca