Initially sold for ¥1,280,000
The YGT100 is a colour terminal made by Yamaha that could also display graphics. The processing boards were probably integrated with the CRT display. It's unknown whether it used the YIS moniker or not. Three models of varying prices were available: YGT100B (¥980,000), YGT100A (¥1,280,000) and YGT100S (¥1,480,000) depending on the number of display planes and colours.