Mitsubishi ML-TS100M2
This page was last modified 18:09, 29 January 2020 by Rderooy. Based on work by Mars2000you and Gdx.



The ML-TS100M2 is a very special MSX2 computer, as it integrates into a single unit the computer, monitor and two floppy disk drives. Only the keyboard comes as separate element.

There's also a big internal surprise: the main CPU is not a Z80A, the usual CPU is replaced by a Z180 (HD64180) at 6.144 MHz. Additionally, the built-in intelligent modem "Communication Unit" is connected to the 64180's serial port. However, there's a co-processor, probably a Z80A, with its own 32kB ROM and its own 32kB RAM, exclusively affected to the network handling.

The multitasking Telecom operating system is based on MSX-DOS. This machine without MSX logo was aimed at the Japanese market.

Brand Mitsubishi
Type ML-TS100M2
Year 1987
Region Japan
Original price ¥328,000
RAM 512kB (+ 32kB for co-processor)
VRAM 128kB
Media DD floppy disks
Video Yamaha V9938
Audio PSG (AY-3-8910)
Chipset  ?
Extras Z180 (HD64180) at 6.144 MHz as main CPU, two 720kB 3,5" floppy disk drives, modem, probably MSX-Modem BASIC, Kanji-ROM level 1, multitasking Telecom OS
Emulation ROM dump needed. See this thread for details


Mitsubishi ML-TS100M2


The ML-TS100M2 is a MSX2 with a a Z180 (HD64180) at 6.144 MHz as main CPU, probably a Z80A at 3.58 MHz only for the network handling, and an built-in intelligent modem "Communication Unit" connected to the 64180's serial port.


  • RJ11 modular connector (telephone line)
  • Keyboard connector
  • Serial connector
  • Tape recorder connector
  • Centronics compatible Parallel port for a printer
  • 2 general connectors (joysticks, mouse, paddle controllers, ...)
  • RS-232C (optional?)
  • Extension Bus 60 pins (specific for this station) (optional?)
  • AC power plug (100V)

Note: No cartridge slot! (confirmed by a programmer of the OS for this computer:


Lost Technology