The Sanco TPC-8300 was made in Japan by Alps, the company that also made the famous mini 4-colour plotter-printer one found connected to numerous home computers and professionnal devices.
Alps probably took part in the design of the Sharp PC-1500. The appearence of the TPC-8300 was thus close to the PC-1500's although all the features of the computer were laid down by the French Sanco company.
In spite of a 2-line display the computer had no success in French and European markets (some OEM versions vere sold in Germany), mainly because it was released about two years after the PC-1500. At that time, Sharp and Casio released better and smaller machines.
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.