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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

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4.6 KiB
Markdown

---
title: Atari PC
categories:
- Computers
types:
- Professional Computer
origins:
- U.S.A.
years:
- '1987'
cpus:
- Intel 8086
params:
name: PC
image: /media/museum/photos/atari_pc1_system_s1.jpg
company: /companies/atari
company_name: Atari
specs:
- label: NAME
value: PC
- label: MANUFACTURER
value: Atari
- label: TYPE
value: Professional Computer
- label: ORIGIN
value: U.S.A.
- label: YEAR
value: '1987'
- label: END OF PRODUCTION
value: Unknown
- label: BUILT IN LANGUAGE
value: Unknown
- label: KEYBOARD
value: Full stroke keyboard
- label: CPU
value: Intel 8086
- label: SPEED
value: 8 mHz
- label: CO-PROCESSOR
value: Optional 8087 Math coprocessor
- label: RAM
value: 512 KB
- label: VRAM
value: Unknown
- label: ROM
value: Unknown
- label: TEXT MODES
value: 40 x 25 / 80 x 25
- label: GRAPHIC MODES
value: All CGA, EGA and Hercules resolutions
- label: COLORS
value: 16 among 64 in EGA mode, monochrom in Hercules mode
- label: SOUND
value: Beeper
- label: SIZE / WEIGHT
value: Unknown
- label: I/O PORTS
value: Centronics, RS232c, Mouse, Monitor
- label: BUILT IN MEDIA
value: one 5.25'' disk-drive
- label: OS
value: MS DOS, GEM
- label: POWER SUPPLY
value: Built-in power supply unit
- label: PRICE
value: Unknown
tabs:
- photos
- links
forum_thread: 92
photos:
- title: PC1 - LARGE VIEW
subtitle: ''
text: ''
image: /media/museum/photos/atari_pc1_system_s2.jpg
- title: PC1 - ANOTHER VIEW
subtitle: ''
text: Thanks to **Rob den Hartigh**
image: /media/museum/photos/atari_pc1_system_s3.jpg
- title: PC1 - FRONT & REAR SIDES
subtitle: ''
text: |-
Rear connectors, from left to right:\
• Mouse\
• Parallel port\
• Serial port\
• Video output\
• Video select switches\
• External FDD unit\
• Keyboard
image: /media/museum/photos/atari_pc1_frontrear_s1.jpg
- title: PC1 - INSIDE
subtitle: ''
text: 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).
image: /media/museum/photos/atari_pc1_inside_s1.jpg
- title: PC1 - ORIGINAL DISKETTES
subtitle: ''
text: The PC-1 shipped with both MS-DOS and GEM OSs.
image: /media/museum/photos/atari_pc1_diskettes_s1.jpg
- title: PC1 - MAIN BOARD
subtitle: ''
text: ''
image: /media/museum/photos/atari_pc1_mainboard_s1.jpg
links:
- title: Web Wiz CAPTCHA
url: http://www.webwizcaptcha.com
text: ''
related:
- /museum/sharp-pc-3101
- /museum/sharp-pc-3201
oc_id: 77
source:
url: https://web.archive.org/web/20230531223206/http://www.old-computers.com/museum/computer.asp?c=77
date: '2023-05-31'
---
Just after the [Atari ST series](/museum/atari-520-st-st-stm/), 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.
<table> <tr> <td></td> <td>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.</td> <td></td> </tr> </table>