This site is intended to be a meeting point for the M20 community and a
collection of informations and manuals dedicated to this computer.
The Olivetti M20 was a personal computer dedicated to businnes and scientific
areas. It was produced by the Italian company Olivetti between 1982 and 1985. Among its peculiarities there was the choice of the CPU, the Zilog Z8001, and
the operating system, called PCOS, wich was developed by Olivetti expecially for
this machine. Olivetti has always been extremely attentive for the aesthetical design of its products; the M20 was not an exception and it was drawn by the pen of Ettore Sottsass.
We want to attempt to preserve as much as possible the technical informations and the
software which was developed for this machine.
July-7-2006
Added a Pac-Man clone in the Z8000 machine language in the Programs and games files section (the Basic section changed its name).
July-5-2006
Could not sleep: too hot tonight.
Added some screenshots and a small Quicktime film in the Download software in Basic section (yet, there are not basic programs).
May-24-2006
ISAM manual added in the Manuals collection.
Fixed some issues in the HTML 4.01 transitional validation.
May-18-2006
ASM/PCOS manual added in the Manuals collection.
Avr-20-2006
New disk images added, in particular Oliword, a drawing program.
Mar-12-2006
After an hacker attack, the site PHP source has been checked and corrected for a security issue which allowed malicious PHP code to be executed on the server.
A new host has been found.
The graphical style of the site was renewed. Some photos of jumper settings have been added in the page: Modifying RAM
expansion cards by Dwight Elvey
