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website/content/museum/kaypro-1.md
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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 16:47:19 +02:00

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---
title: Kaypro 1
categories:
- Computers
types:
- Portable
origins:
- U.S.A.
years:
- '1986'
cpus:
- Z80-A
params:
name: Kaypro 1
image: /media/museum/photos/kaypro_1_system_1.jpg
company: /companies/kaypro
company_name: Kaypro
specs:
- label: NAME
value: Kaypro 1
- label: MANUFACTURER
value: Kaypro
- label: TYPE
value: Portable
- label: ORIGIN
value: U.S.A.
- label: YEAR
value: '1986'
- label: BUILT IN LANGUAGE
value: None
- label: KEYBOARD
value: Detachable, 72 key typewriter style keyboard with 18 programmable keys.
- label: CPU
value: Z80-A
- label: SPEED
value: 4 MHz
- label: RAM
value: 64 KB
- label: VRAM
value: Unknown
- label: ROM
value: Unknown
- label: TEXT MODES
value: 80 char. x 25 lines
- label: GRAPHIC MODES
value: Resolution unknown. Managed by Escape sequences
- label: COLORS
value: built-in 9'' non-glare green phosphor screen
- label: SOUND
value: Unknown
- label: SIZE / WEIGHT
value: Unknown
- label: I/O PORTS
value: 2 x RS232C serial ports, 1 x Centronics-type parallel port, 2 x RJ11 modem jacks ?
- label: BUILT IN MEDIA
value: 2 x 5.25'' DS/DD floppy drives (390 KB per disk)
- label: OS
value: CP/M
- label: POWER SUPPLY
value: Built-in power supply unit
- label: PRICE
value: Unknown
tabs:
- photos
- links
- docs
photos:
- title: BACK SIDE
subtitle: ''
text: |-
**(1)** Reset switch\
**(2)** Parallel printer connector\
**(3)** General purpose serial RS232 port\
**(4)** Second serial port dedicated to a serial printer\
**(5)** Internal 300 baud modem RJ11 jacks\
**(6)** Screen brightness knob
image: /media/museum/photos/kaypro_1_back_1.jpg
links:
- title: Web Wiz CAPTCHA
url: http://www.webwizcaptcha.com
text: ''
docs:
- title: KAYPRO TECHNICAL MANUAL
url: null
cover: /media/museum/docs/couvs/kaypro_technical_manual.jpg
text: |-
**KAYPRO TECHNICAL MANUAL**\
written by Kaypro
 compiled/archived by Unknown\
 type of document : Online reader
**... READ THE ONLINE VERSION BY CLICKING BELOW :**
comments:
- author: Richard (US)
date: Thursday 10th February 2011
text: |-
I worked or Kaypro as a district manager when the Kaypro 1 was introduced. By the time the Kaypro 1 was introduced, CP/M was totally, absolutely, positively dead, and we as sales people tried until we were blue in the face to convince the Kays of that. As I recall, the Kaypro 1 sold for $999, with a dealer cost of $750 plus about $50 for shipping. Dealers had a love/hate relationship with the Kaypro. They loved them because Kaypro had a very loyal fan base, but they hated them because the margins were quite low, and there was little chance to make extra money on software and accessories because most Kaypros shipped feature-rich with the software already bundled. Dealers had no interest in the K1 because most had no one on staff who was familiar with CP/M by the time the K-1 came out, and in a market where the consumer expected a 20$ discount minimum, there just wasn''t anything in the deal for the dealer.
The price point was fabulous for a machine for somewone who was heavy into word processing, and Word Star looked about the same in CP/M as it did in DOS, but the world was moving away from text based computing towards graphics-based computing, and neither CP/M nor DOS had much of a future left by 1986.
related:
- /museum/kaypro-10
- /museum/kaypro-2x
- /museum/kaypro-4
- /museum/kaypro-ii
- /museum/kaypro-iv
- /museum/kaypro-robie
oc_id: 831
source:
url: https://web.archive.org/web/20230603122236/http://www.old-computers.com/museum/computer.asp?c=831
date: '2023-06-03'
---
The Kaypro 1 wasn't the first computer Kaypro launched, but quite one of the last ones.
When the company started getting strapped for money they changed the model name of some of their previous systems, modified the case design, added some minor hardware improvements and launched them as new models.
The Kaypro 1 was thus no more than a rebadged version of the 2X model which was itself a light evolution of a previous version called 4'84!
The main difference between the 1 and 2X versions was the floppy drives assembly, hozizontally mounted in the 2X, vertically in the model 1.
---
From **Robert**:\
I used to work for Kaypro back in the early and mid 80's at the headquarters in Solana Beach. Mr. Kay was a wonderful man to work for and the campus was beautiful.\
I wish Kaypro had of become the Compaq of that time. I remember Compaq being a major worry back then. I wish I could connect with some of the beautiful people that I worked with at Kaypro.
<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>