Files
website/content/museum/mindset-corp-graphics-computer.md
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

7.8 KiB

title, categories, types, origins, years, cpus, params
title categories types origins years cpus params
Mindset Corp. Graphics computer
Computers
Professional Computer
U.S.A.
1984
16-bit Intel 80186
name image company company_name specs tabs forum_thread photos hardware screenshots oc_id source
Graphics computer /media/museum/photos/mindset_systemcut_s1.jpg /companies/mindset-corp Mindset Corp.
label value
NAME Graphics computer
label value
MANUFACTURER Mindset Corp.
label value
TYPE Professional Computer
label value
ORIGIN U.S.A.
label value
YEAR 1984
label value
END OF PRODUCTION Unknown
label value
BUILT IN LANGUAGE None
label value
KEYBOARD Full-stroke 84-key keyboard with separate numeric keypad
label value
CPU 16-bit Intel 80186
label value
SPEED 6 MHz
label value
CO-PROCESSOR Two custom VLSI chips that handle graphics load
label value
RAM 128 KB expandable to 384 KB
label value
ROM Unknown
label value
TEXT MODES 40 or 80 columns x 25 lines
label value
GRAPHIC MODES 320x200, 640x400 (interlaced)
label value
COLORS 16 (for 320 mode), 2 (for 640 mode) all from 512 color palette
label value
SOUND 4 voice sound (optional stereo module planned, adding another 4 )
label value
I/O PORTS RF modulator, NTSC composite out, analog RGB, synch, mouse, sound
label value
BUILT IN MEDIA Two modular ROM/NVRAM cartridge slots. Optional dual 5.25
label value
OS MS-DOS 2.11
label value
POWER SUPPLY Built-in Power switching supply unit
label value
PRICE $2400 (2 floppy drive, 256K RAM configuration)
photos
hardware
software
960
title subtitle text image
DOUBLE-DECKER MAIN UNIT Notice the two ROM/NVRAM modules mounted on the front of the bottom main unit. /media/museum/photos/mindset_system_s1.jpg
title subtitle text image
FRONT VIEW /media/museum/photos/mindset_systemfront_s1.jpg
title subtitle text image
KEYBOARD AND MOUSE CLOSE-UP The nice two-red-button mouse was made in Japan. It was one of the rare models to use a metal ball. /media/museum/photos/mindset_keyboard_s1.jpg
title subtitle text image
RUNNING When not in use, the Mindset displays a rotating Mindset logo. /media/museum/photos/mindset_running_s1.jpg
title subtitle text image
CONNEXION The two units are connected and fixed together by a large bus connector. /media/museum/photos/mindset_connector_s1.jpg
title subtitle text image
COMPLETE SYSTEM Complete system with a Taxan Vision 420 colour monitor and a Xerox Diablo C150, one of the first and expensive colour ink-jet printer. /media/museum/photos/mindset_completesystem_s1.jpg
title subtitle text image
REAR SIDE From left to right:\ • Audio output jack\ • Composite video output jack\ • TV/RF video output jack\ • TV channel selector\ • RGB video output DB9 connector\ • External sync DB9 connector\ • Aux. In and Out jacks (we have no information about them) The system also featured 6 expansion slots, 3 in the main unit (above the rear connectors) and 3 in the disk/memory module. They were designed for future expansion that never see the light. /media/museum/photos/mindset_rear_s1.jpg
title subtitle text image
INSIDE Two expansion cards are mounted vertically. The front one supports the ROM/RAM module slots, the rear one is used for the connexion with the FDD/RAM module and also supports three expansion slots. /media/museum/photos/mindset_opened_s1.jpg
title subtitle text image
MAINBOARD **(1)** The two VLSI chips specially designed for the Mindset. They manage the graphics processing off the CPU\ **(2)** Rear expansion card\ **(3)** TV/RF modulator\ **(4)** Connector for the front expansion card\ **(5)** Two Intel 8042 microcontroller chips provide memory and I/O management\ **(6)** 32 KB base RAM memory (4x4416 chips). The rest of the RAM memory is located in the expansion module\ **(7)** Beeper\ **(8)** 32 KB BIOS ROMs (2x27128) /media/museum/photos/mindset_mainboard_s1.jpg
title subtitle text image
INSIDE THE EXPANSION MODULE The expansion module holds two half-size 5.25" 360 KB floppy-disk drives, 96 KB of basic RAM (soldered chips) and 128 KB of additional RAM (socketed chips). This module also provides three expansion slots. /media/museum/photos/mindset_insidefdunit_s1.jpg
title subtitle text image
CUSTOM CHIPSET CLOSE-UP /media/museum/photos/mindset_chipset_s1.jpg
title subtitle text image
MINDSET LABEL /media/museum/photos/mindset_label_s1.jpg
title subtitle text image
PARALLEL PRINTER MODULE /media/museum/hardware/mindset_printermodule_s1.jpg
title subtitle text image
LUMINA PAINT Picture made with the Lumina Paint program /media/museum/software/mindset_graphics_graphdemo_s1.jpg
986
url date
https://web.archive.org/web/20230417011654/http://www.old-computers.com/museum/computer.asp?c=986 2023-04-17

This little-known graphics workstation is an intriguing example of the many, varied machines introduced in the mid 1980's.

The Mindset microcomputer, designed by two ex-Atari engineers, offered graphics performance far beyond that of other personal computers on the market at the time of its introduction in early 1984.

Based on the rarely seen, 16-bit Intel 80186 (also used in the Tandy Model 2000), the Mindset was a powerful graphics workstation built on a (mostly) MS-DOS compatible core. Two custom VLSI chips shouldered the burden of graphics heavy lifting; offering graphics performance 50 times that of the IBM PC, leaving the CPU free to handle other chores.

The system unit was striking to behold. Crafted by industrial design group, GVO, of Menlo Park, CA, the Mindset was chosen for a place in the Museum of Modern Art.

The main system unit lacked floppy disk storage but instead sported two, front-mounted ROM/NVRAM module ports. The system's serial and parallel interface, as well as system memory expansion, were also modular. A dual floppy drive expansion module attached to the top of the unit, giving it a futuristic, double-decker look (most units were sold with the floppy drive module bundled in).

The Mindset was one of the very first computers to come standard with a mouse; in this case, a two-button unit with a somewhat unwieldy, heavy cord and a metal mouse ball.
11 advanced graphics modes which could be seen on any of the system's three graphics outputs; impressive flexibility for its day. A very powerful paint program, Lumena from Time Arts, Inc., was available for the Mindset, allowing the creation of stunning, static images from its palette of 512 colors. Beyond the static, however, the machine's custom graphics hardware was capable of performing frame buffer animation at a speed 50 times greater than that of the IBM PC.

There were rumors that Atari CEO, Jack Tramiel, was considering purchasing the Mindset to bring it under the Atari flag. This did not happen, but it is interesting to note that the original Atari ST series computers, released a year later, featured almost exactly the same graphics modes and palette depth as the Mindset micro.

More information about this notable entry in computing history can be found at this on-line version of a Feb. '85 Creative Computing review.

Thanks to Blake Patterson for information.