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

5.9 KiB

title, categories, types, origins, years, cpus, params
title categories types origins years cpus params
Otrona Attache
Computers
Transportable
U.S.A.
1982
Zilog Z80A at 4 MHz
name image company company_name specs tabs forum_thread photos links oc_id source
Attache /media/museum/photos/otrona_attache_1s.jpg /companies/otrona Otrona
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NAME Attache
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MANUFACTURER Otrona
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TYPE Transportable
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ORIGIN U.S.A.
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YEAR April 1982
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END OF PRODUCTION 1984
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BUILT IN LANGUAGE Unknown
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KEYBOARD compact full-stroke keyboard (QWERTY)
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CPU Zilog Z80A at 4 MHz\ + Intel i8086 at 8 MHz for the Model 8:16
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RAM 64 KB\ 8:16 model: 256 KB when running in MS-DOS mode
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ROM 4 KB
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TEXT MODES 80 x 24
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GRAPHIC MODES 320 x 240
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COLORS No (monochrome built-in 5.5'' CRT display)
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SIZE / WEIGHT 12 x 5.75 x 13.6 inches / 19 lbs
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I/O PORTS expansion slot, keyboard connector, two RS-232c ports, video output (composite)
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BUILT IN MEDIA 5.25'' built-in floppy disk drive (360 KB)
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OS CP/M\ + MS-DOS with 8:16 model
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POWER SUPPLY AC power or battery pack (optional)
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PERIPHERALS second 5.25'' floppy disk drive, 10 MB hard disk, parallel interface, carrying case, battery pack
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PRICE $3995 (USA, 1982)
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OTRONA ATTACHE /media/museum/photos/otrona_attache_1.jpg
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RIGHT SIDE /media/museum/photos/otrona_attache_3.jpg
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TOP VIEW /media/museum/photos/otrona_attache_top.jpg
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CLOSED ready to go ! /media/museum/photos/otrona_attache_closed.jpg
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CLOSED - STAND UP /media/museum/photos/otrona_attache_closed_2.jpg
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CLOSED WITH 5.25'' DISK /media/museum/photos/otrona_attache_closed_3.jpg
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DETAIL The serial number of this unit is 1464. /media/museum/photos/otrona_attache_detail.jpg
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TURNED ON /media/museum/photos/otrona_attache_2.jpg
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USING THE DISK DRIVES /media/museum/photos/otrona_attache_disk.jpg
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REAR /media/museum/photos/otrona_attache_rear.jpg
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BOOT SCREEN /media/museum/photos/otrona_attache_screen.jpg
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MOTHERBOARD This is a model 8:16 motherboard, with the additional i8086 board placed on top of the main Z80 board. /media/museum/photos/otrona_attache-8-16_mobo.jpg
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DOCUMENTATION /media/museum/photos/otrona_attache_docs.jpg
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Oldcomputers.net - Otrona Attache page http://oldcomputers.net/attache.html Very interesting page about the Otrona Attache
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Otrona Attache 8:16 diskette contents http://wps.com/archives/Otrona-Attache-8-16-diskettes/ download this while it's online!
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Rhod's collection http://www.rhod.fr/otrona.html Nice pictures!
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Wikipedia - Otrona page http://en.wikipedia.org/wiki/Otrona Some info here...
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https://web.archive.org/web/20230530210241/http://www.old-computers.com/museum/computer.asp?c=1227 2023-05-30

The Otrona Attache was the most wanted transportable computer at the time as it was the smallest of its category. Preceded by the Osborne and Kaypro II, the Attache was also more expensive than its competitors. Compactness has a price!

The Attache is this a nice little CP/M system. High-resolution graphics, compact keyboard, 64 KB RAM, real time battery-packed clock, composite video output, delivered with Wordstar, MBasic, CP/M, the Otrona Attache had all that was needed at the time to be efficient.

in 1983, Otrona released a second model, the Attache 8:16 which was in fact a "normal" Attache with an Intel 8086 expansion board built-in, thus offering the MS-DOS world in addition to the CP/M compatibility. The IBM PC was already putting a strong pressure on the market. The rush toward MS-DOS compatibility had begun, announcing CP/M death. Meanwhile, hybrid machines like this one appeared on the market illustrating the transition.

In May 1984, Otrona announced a new transportable model, the Otrona 2001, using an Intel 8088 processor. Sadly the 2001 wasn't completely IBM PC compatible and the production costs were high. Like its predecessor (Attache), the 2001 had real assets, but was too expensive compared to other portables. As Otrona didn't want to exceed the $3000 price limit to stay competitive against IBM and Compaq, they had to throw in the towel.

Too bad, as the demand for the "2001" ran extraordinarily well, as Otrona president Jim Lindner explained. 1000 orders in the month were common.

But in september 1984, Otrona Advanced Systems announced that it was ceasing production. It gave notice to its 175 employees and said that it had decided that is was not able to reorganize (and thus continue in business) under Chapter 11 of the Bankruptcy Act. Jim Lindner hoped for a buyback which never came (?).

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.