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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

4.6 KiB

title, categories, types, origins, years, cpus, params
title categories types origins years cpus params
Atari PC
Computers
Professional Computer
U.S.A.
1987
Intel 8086
name image company company_name specs tabs forum_thread photos links related oc_id source
PC /media/museum/photos/atari_pc1_system_s1.jpg /companies/atari Atari
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NAME PC
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MANUFACTURER Atari
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TYPE Professional Computer
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ORIGIN U.S.A.
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YEAR 1987
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END OF PRODUCTION Unknown
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BUILT IN LANGUAGE Unknown
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KEYBOARD Full stroke keyboard
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CPU Intel 8086
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SPEED 8 mHz
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CO-PROCESSOR Optional 8087 Math coprocessor
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RAM 512 KB
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VRAM Unknown
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ROM Unknown
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TEXT MODES 40 x 25 / 80 x 25
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GRAPHIC MODES All CGA, EGA and Hercules resolutions
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COLORS 16 among 64 in EGA mode, monochrom in Hercules mode
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SOUND Beeper
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SIZE / WEIGHT Unknown
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I/O PORTS Centronics, RS232c, Mouse, Monitor
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BUILT IN MEDIA one 5.25'' disk-drive
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OS MS DOS, GEM
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POWER SUPPLY Built-in power supply unit
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PRICE Unknown
photos
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92
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PC1 - LARGE VIEW /media/museum/photos/atari_pc1_system_s2.jpg
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PC1 - ANOTHER VIEW Thanks to **Rob den Hartigh** /media/museum/photos/atari_pc1_system_s3.jpg
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PC1 - FRONT & REAR SIDES Rear connectors, from left to right:\ • Mouse\ • Parallel port\ • Serial port\ • Video output\ • Video select switches\ • External FDD unit\ • Keyboard /media/museum/photos/atari_pc1_frontrear_s1.jpg
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PC1 - INSIDE There is no way to add an expansion card or another mass storage device into the case although one finds some unused expansion conectors on the main board (more info needed). /media/museum/photos/atari_pc1_inside_s1.jpg
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PC1 - ORIGINAL DISKETTES The PC-1 shipped with both MS-DOS and GEM OSs. /media/museum/photos/atari_pc1_diskettes_s1.jpg
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PC1 - MAIN BOARD /media/museum/photos/atari_pc1_mainboard_s1.jpg
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Web Wiz CAPTCHA http://www.webwizcaptcha.com
/museum/sharp-pc-3101
/museum/sharp-pc-3201
77
url date
https://web.archive.org/web/20230531223206/http://www.old-computers.com/museum/computer.asp?c=77 2023-05-31

Just after the Atari ST series, Atari decided to launch a series of PC compatible systems. The PC-1 was the first model. It used the shell of the Atari Mega ST4 and its mouse. It held 512 KB of RAM, an optional 20 or 23 MB HDD, but didn't have ISA extension slot, to use a PC card, an expansion box was necessary.
However, the PC-1 had Parallel, serial and mouse ports built-in as well as an universal video interface allowing either colour CGA and EGA or Hercules monochrome monitors to be connected to the same video port.

The range of Atari PC compatible systems was also comprised of:
• The PC3, a 8088 8Mhz based system with 640 KB ram, CGA graphics and 20MB hard drive,
• The PC4, a 80286 16Mhz based system with a 60MB hard drive in which - optionally- a 3.5 1.44 Mb drive could be fitted (the front needed to be cut out and the metal casing sawed by the user). It also featured VGA graphics,
• The ABC, a 80386sx 16Mhz model with a 40MB hard disk and vga graphics. This one came with a 3.5 floppy built in,
• The PC5, a 20MHz 80386 PC featuring 60 MB hard disk and SVGA graphics with same 3.5 floppy disk option as with the PC4,
• the N386 laptop.


Matt Lloyd adds:
I bought one of these when I attended college in 1988. The Ram was expandable to 640K. However the selling point was it had an ST compatible floppy/HD connector which meant that you could add ST floppy and hard drive which were alledgedly cheaper than the PC equivalent. It also came with the GEM operating sytem in an attempt to provide an ST like interface for the PC.

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.