website/content/museum/hitachi-s1.md at b274874139da62c415edee0b7db6dfeacc5f718a

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yann64andClaude Opus 5.5 b274874139 All machines linked to their forum thread (full comment import)

1,289 discussions, 9,527 archived comments; pages no longer carry the comments themselves.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01YDRjtmAiNpo5mK5N3d7QwZ

2026-10-13 17:26:43 +02:00

2.6 KiB

Raw Blame History

title, categories, types, origins, cpus, params

title

categories

types

origins

cpus

params

Hitachi S1

Computers

Professional Computer

Japan

Motorola 68B09E

name

image

company

company_name

specs

tabs

forum_thread

photos

oc_id

source

/media/museum/photos/hitachi_s1_1.jpg

/companies/hitachi

Hitachi

label	value
NAME	S1

label	value
MANUFACTURER	Hitachi

label	value
TYPE	Professional Computer

label	value
ORIGIN	Japan

label	value
YEAR	Unknown

label	value
BUILT IN LANGUAGE	Unknown

label	value
KEYBOARD	Full-stroke keyboard with numeric keypad

label	value
CPU	Motorola 68B09E

label	value
SPEED	1/2 MHz

label	value
RAM	106 KB (max 618 KB)

label	value
VRAM	Unknown

label	value
ROM	24 KB (Level3 Basic) + 64 KB (S1 Basic)

label	value
TEXT MODES	Unknown

label	value
GRAPHIC MODES	640 x 200 / 320 x 200

label	value
COLORS	256

label	value
SOUND	Unknown

label	value
I/O PORTS	Tape, RS232C, Printer

label	value
BUILT IN MEDIA	optional external 5.25

label	value
OS	Built in Basic

label	value
POWER SUPPLY	Built-in power supply unit

label	value
PRICE	$1199 (Australia, 1985)

photos

345

title	subtitle	text	image
THE S1-45		The S1 was followed by the S1-45 (I have no information about it).	/media/museum/photos/s145.jpg

title	subtitle	text	image
AUSTRALIAN PRICE LIST (1985)		Thanks to David Wilson for this picture	/media/museum/photos/hitachi_mbs1_price-list.jpg

341

url	date
https://web.archive.org/web/20221205112156/http://www.old-computers.com/museum/computer.asp?c=341	2022-12-05

Nearly nothing is known about this obscure system. Help welcome !

Pat from Australia, remembers:
On a whim, I looked up the Hitachi S1. When I was much younger - probably in 1984 or 1985 - my dad worked as a Hitachi reseller in Australia. The S1 was not sold outside of Japan to my knowledge, but it did have English available as a language so that may not be for certain. What really caught my attention outside of the amazing computational capabilities and colours (having used Hitachi Peaches for quite a while) was that the S1 (or at least the one I was playing with) had a hard disk! If only I could remember the name of the games I was playing on this thing!

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.

2.6 KiB Raw Blame History

2.6 KiB

Raw Blame History