1985 (Jun.)
Initially sold for ¥59,800
The Yamaha YIS503II home personal computer is the upgrade to the late 1983 Yamaha YIS503 MSX computer. It comes with 64KB of RAM preinstalled and 16KB of VRAM, it supports new MSX specifications such as DISK and MSX-DOS, and has a new all-black chassis with one extra cartridge slot. This allows to easily plug in an external disk drive such as the FD03 or FD05 without losing the ability to use cartridges. Together with the composite and RF outputs there's now also a 21-pin RGB output connector to enjoy better and clearer images.
It's the same computer as the CX5MII but sold without any modules preinstalled in the side expansion slot. A couple of feet on the back lets you tilt the whole keyboard.
