Toshiba Pasopia IQ


The Toshiba Pasopia IQ are a series of MSX compatible machines released by Toshiba between 1983 and 1985.

HX-10 series

The HX-10 was released in the fall of 1983. There is only one ROM cartridge slot, but there's an optional expansion slot available. Several models exist, targeting different markets. For example, the HX-10DPN is equipped with an RGB 21-pin terminal, but other connections are non existing; the HX-10S only has 16KB of RAM.

HX-20 series

The HX-20 was released in the fall of 1984 is equipped with 64KB of RAM. It has a monaural / stereo sound selector switch. Like with the HX-10 series, several models exist. The later models have a RGB 21-pin video output. The HX-23 is compatible with the MSX2 and comes with 64KB of VRAM. The HX-23F is equipped with a RS-232 interface and comes with 128KB of VRAM.

HX-30 series

The HX-30 was MSX compatible and released in 1985, with 16KB of RAM, with latter models coming with 64KB, a RGB 21-pin video output and Programmable sound generator stereo output.
The HX-33 model has 128kB of VRAM and was MSX2 compatible with integrated keyboard. The next model, HX-34, added a floppy disk drive.

Model list

The following table present a condensed model list of the MSX compatible computers released by Toshiba.
ModelYearRegionCompatibility
Toshiba HX-10D 1983JPMSX 1
Toshiba HX-10S 1983JPMSX 1
Toshiba HX-10AA1984BE, NLMSX 1
Toshiba HX-10DP 1984JPMSX 1
Toshiba HX-10DPN 1984JPMSX 1
Toshiba HX-10E1984ESMSX 1
Toshiba HX-10F1984FRMSX 1
Toshiba HX-10I1984ITMSX 1
Toshiba HX-10P1984DE, IT, UKMSX 1
Toshiba HX-10SA 1984JPMSX 1
Toshiba HX-10SF1984FIMSX 1
Toshiba HX-20 1984JPMSX 1
Toshiba HX-21 1984JPMSX 1
Toshiba HX-22 1984JPMSX 1
Toshiba HX-20E1985ESMSX 1
Toshiba HX-20I1985ITMSX 1
Toshiba HX-21F1985FRMSX 1
Toshiba HX-22CH1985CHMSX 1
Toshiba HX-22GB1985UKMSX 1
Toshiba HX-22I1985ES, ITMSX 1
Toshiba HX-30 1985JPMSX 1
Toshiba HX-31 1985JPMSX 1
Toshiba HX-32 1985JPMSX 1
Toshiba HX-511985ES, ITMSX 1
Toshiba HX-521985ES, ITMSX 1
Toshiba HX-20AR1986ARMSX 1
Toshiba HX-23 1985JPMSX 2
Toshiba HX-23F 1985JPMSX 2
Toshiba HX-33 1985JPMSX 2
Toshiba HX-34 1985JPMSX 2
Toshiba FS-TM11986ITMSX 2