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---
title: Kyocera Kyotronic 85
categories:
- Computers
types:
- Portable
origins:
- Japan
years:
- '1983'
cpus:
- Intel 80C85 CMOS low power version
params:
name: Kyotronic 85
image: /media/museum/photos/kyocera_kyotronic85_system_s1.jpg
company: /companies/kyocera
company_name: Kyocera
specs:
- label: NAME
value: Kyotronic 85
- label: MANUFACTURER
value: Kyocera
- label: TYPE
value: Portable
- label: ORIGIN
value: Japan
- label: YEAR
value: '1983'
- label: BUILT IN LANGUAGE
value: Microsoft BASIC
- label: KEYBOARD
value: Typewriter type, 72 keys with 16 function keys and 4 arrow keys
- label: CPU
value: Intel 80C85 CMOS low power version
- label: SPEED
value: 2.4 MHz
- label: RAM
value: 8 to 32 KB
- label: ROM
value: 32 KB
- label: TEXT MODES
value: 40 columns x 8 lines
- label: GRAPHIC MODES
value: 240 x 64 dots
- label: COLORS
value: Monochrome
- label: SOUND
value: Beeper
- label: SIZE / WEIGHT
value: 28 (W) x 21.6 (D) x 5 (D) cm
- label: I/O PORTS
value: Parallel printer, Tape recorder, Bar Code reader, Serial RS232, Phone, System bus
- label: BUILT IN MEDIA
value: User RAM battery backup
- label: POWER SUPPLY
value: 6V DC adaptor or 4 x AA batteries
- label: PERIPHERALS
value: Disk drive unit
- label: PRICE
value: Unknown
tabs:
- photos
forum_thread: 1049
photos:
- title: LARGE VIEW
subtitle: ''
text: ''
image: /media/museum/photos/kyocera_kyotronic85_system_s2.jpg
oc_id: 1079
source:
url: https://web.archive.org/web/20221203155553/http://www.old-computers.com/museum/computer.asp?c=1079
date: '2022-12-03'
---
The Kyotronics 85 may be considered the world's first true laptop computer.
It was designed and sold in Japan by Kyocera (Kyoto Ceramics). But curiously, apart from the Japanese market, it was little sold in the world despite its very innovative design.
On the other hand, three major computer firms noticed this little gem and licenced it. Shortly afterwards, one would see the same computer sold under three different names and case designs in every corner of the world. These machines were the [NEC PC-8201](/museum/nec-pc-8201a/), the [Tandy Model 100](/museum/tandy-radio-shack-trs-80-model-100-102/) and the [Olivetti M10](/museum/olivetti-m10/).
Each brand added its own enhancement - arrow keys for the NEC, tilt display for the Olivetti, but the hardware basis was identical: an 8085 CPU, 8 to 32 KB of RAM, a full-size typewriter keyboard and an 8-line x 40-character LCD display.
Later, Tandy asked Kyocera to introduce changes and released the [Tandy 102](/museum/tandy-radio-shack-trs-80-model-100-102/) (larger memory) then the [Tandy 200](/museum/tandy-radio-shack-trs-80-model-200/) (larger display).
<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>