The MBC-1100 and MBC-1150 were two 8-bit machines intended for business market. They replaced the old MBC-1000.
There was no difference between the 1100 and 1150 models except that they left the factory with 1 or 2 drives installed. It was often done that a 1100 model would have a drive added by the dealer, as it was sometimes less expensive to add the Teac 5.25" disk drive than buy the 1150, or often the 1100s were more available in stock.
Both models had no graphic features. This was introduced with the follow-up MBC-1200 and 1250 models.
Thanks to Rusty Beard for some of the info.
We need more info about this computer ! If you designed, used, or have more info about this system,
please send us pictures or anything you might find useful.