This is a classic MSX 1 computer made by Kyocera and sold by Yashica. Kyocera didn't sell any MSX computers under its brand name, but conceived a few like the Philips VG-8020 and the above for example...
The Yashica YC-64 is somewhat original as it is red!
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.
BUILT IN LANGUAGE
Microsoft Extended Basic (MSX Basic V1.0)
QWERTY mechanical keyboard
Mode 0 : 40 x 24 Mode 1 : 32 x 24
Mode 2 : 256 x 192 with 16 colors (Hires mode) Mode 3 : 64 x 48 with 16 colors (Multi colour mode) 32 sprites
General Instruments AY-3-8910 Programmable Sound Generator 3 channels, 8 octaves