Sony HB-11
This page was last modified 14:46, 29 January 2020 by Rderooy. Based on work by Mars2000you and Gdx.




The Sony HB-11 is the last MSX1 computer released by Sony, aimed at the Japanese market. It is called "Hit-bit U" (U for University?) and is dedicated to students.

The case color is available in red or deep blue. The power supply is buit-in. This computer has a QWERTY Japanese keyboard with ANSI layout for kanas characters.

The design is intermediate between the HB-201 and the HB-10, as only the pause button and the carrying handle have been removed.

A retractable stick is build in the middle of the cursor keys, which can be used as joystick. As on the HB-501, the back of the case has a location to store the stick during transport.

The HB-11 is one of the rare MSX1 computers having a Kanji-ROM.

Brand Sony
Type HB-11
Year 1986-02-21
Region Japan
Original price ¥48,000
RAM 64kB
Media Cartridges
Video Texas Instruments TMS9118NL
Audio PSG (YM2149 integrated in MSX-Engine)
Chipset  ?
Extras reset button, built-in joystick, Kanji-ROM level 1, Firmware (English-Japanese Dictionary & Japanese Word Processor) + tape with examples
Emulation ROM dump needed. See this thread for details


The Personal Databank of many Sony MSX1 computers has been replaced by a slightly modified version of "Word Land Sentence II", that combines an English-Japanese Dictionary and a Japanese Word Processor.

The firmware is launched automatically when you boot the machine. It has 3 options: BASIC, English-Japanese Dictionary, Word Processor.

A tape is provided in addition to this firmware, it contains 50 examples of sentences.



Sony HB-11 red
Sony HB-11 red back
Sony HB-11 box
Sony HB-11 blue
Sony HB-11 blue back
Sony HB-11 box back
Sony HB-11 stick slot
Sony HB-11 label
Sony HB-11 box and content


Sony HB-11 firmware menu
Sony HB-11 firmware Japanese Wordprocessor


The HB-11 is a MSX1 with two cartridge slots at the top of the computer.