The HB-201 was the same machine as the HB-101, but with 64 KB of available RAM memory.
It was sold in grey or black case color. The 'P' means 'PAL' RGB video output.
Peter de Vroomen adds:
The great thing about this computer is that it has a PAUSE button, which physically halts the CPU when pressed. Very handy for debugging or cracking programs :). The PAUSE button is that button above the cursor keys.
Also handy is the carrying handle. This computer was meant to be (somewhat) portable, so you could take it with you when you visited your friends. On the underside is a compartment that looks like a battery-compartment, but is used to store the power-cable when you are transporting the computer.
For the rest it's simply a 64KB MSX computer like the rest of them. There also seems to be no difference between the white/grey and the black version, other then the color.
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.