|
Andreas Senk M20 collectionAndreas has several very nice M20s and a very interesting piece of hardware.The family: three working M20s: from left to right there is a D, a DES and a ST. An Olivetti M20 DES with a mysterious piece of hardware, from Olivetti. A particular of this peculiar DES version. The mysterious box attached to the M20 DES. The black thing on the front is a keyhole. Maybe a protection system? Or an hardware watchdog system? The back label of the external box The controller inside the M20, connected to the external box. The controller. The big chip on the center of the board is a programmable interrupt generator. Another view of the internal controller. The inside of the external box: see below! Mystery box solved!
Andreas Pittini sent us some interesting information about this strange piece of hardware:
this is (was!?) a special feature for a tax accountant.
The "Mystery Box" on your homepage i know as special DATEV-Device.
This is for turning on the PC at night for receiving data from remote. Page log
Olivetti is a registered trademark of Telecom Italia. This site is not related to Olivetti nor to Telecom Italia. The material presented is meant for personal use only and is shared in a "fair use" spirit. If you own the copyright of some of the stuff presented here and you think it should be removed, please contact the webmaster. |
Updates
|