This is a classic MSX 1 computer. There were 2 versions : the PHC-28L with 64 KB RAM and the PHC-28S with only 32 KB RAM. There is also a third model labeled PHC-28P with 64 KB, but difference with PHC628L is not known yet (help welcomed). There also seemed to be a 16 KB only model...
They had small success in France. It seems that the japanese had a different colored case (cream white).
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)
Excellent QWERTY keyboard
PHC-28 L : 64 kb PHC-28 S : 32 kb
32 kb BASIC/BIOS ( MSX BASIC V1.0)
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
2 joystick sockets 2 cardridge slots Tape-recorder plug (1200/2400 bauds) RGB video output Centronics interface Monitor video out
Built-in power supply
16 KB model = 1750 FF (France, jan.1986) 32 KB model = 1850 FF (France, jan.1986) 64 KB model = 1990 FF (France, jan.1986)