The Bruc 100 is one of the few home computer designed and manufactured in Italy by Frael (Franchi Electronics) . Released in the 1987 it was sold along with the computer courses of the School 2F.
There are two models. The first has no cartridge slot but only one extension BUS. On the second model the extension BUS has been replaced by a cartridge port.
The Bruc 100 is not totally an MSX1 computer. The cartridge port (or the extension BUS) and the cassette tape connector are a bit different. This computer doesn’t support the FM-Pac nor floppy disk controllers, etc because the port does not provide + 12V nor -12V. The cartridge port also has the particularity of having two /SLTSL signals (pin 4 for slot 2 and pin 16 for slot 3).
The Basic of Bruc 100 is not the MSX-Basic but it is very similar. The keyboard is a bit different from a MSX. There are 107 keys which a number pad, shortcut keys and some mirror keys.
Replacement of non polarized plug C7/C8: