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Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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---
title: NEC TK 80
categories:
- Computers
types:
- Home Computer
origins:
- Japan
years:
- '1976'
cpus:
- ìPD8080AD
params:
name: TK 80
company: /companies/nec
company_name: NEC
specs:
- label: NAME
value: TK 80
- label: MANUFACTURER
value: NEC
- label: TYPE
value: Home Computer
- label: ORIGIN
value: Japan
- label: YEAR
value: '1976'
- label: KEYBOARD
value: |-
Hexadecimal keyboard, 25 keys\
TK-80 BS : full-stroke keyboard
- label: CPU
value: ìPD8080AD
- label: SPEED
value: 1.3 MHz
- label: RAM
value: |-
512 bytes\
TK-80 BS : 5k
- label: ROM
value: 2 kb ?
- label: TEXT MODES
value: |-
8 characters x 1 line (7 segments LED display)\
TK-80 BS : 32 x 16
- label: GRAPHIC MODES
value: None
- label: COLORS
value: None
- label: SOUND
value: None
- label: SIZE / WEIGHT
value: 310 × 180 mm
- label: I/O PORTS
value: Expansion bus, EPROM sockets
- label: PERIPHERALS
value: Optional cassette interface (300 bauds), RAM expansion, Basic ROM
- label: PRICE
value: 88,500 Yen (Japan)
tabs:
- photos
- adverts
- emulators
- links
photos:
- title: TK-80
subtitle: ''
text: ''
image: null
- title: DRAWING
subtitle: ''
text: This is the picture used by the Windows emulator. Quite accurate !
image: null
adverts:
- title: JAPANESE AD
subtitle: ''
text: Picture courtesy of Soichiro Oga / [Old PC leaflets museum](http://web.kyoto-inet.or.jp/people/s-oga/)
image: null
emulators:
- title: TK-80 Windows Emulator
url: http://www.watch.impress.co.jp/pc/docs/article/20000327/ascii.htm
platform: Windows
text: Commercial Windows emulator delivered on CD-ROM with PDF original documentation
links:
- title: Electric Brain Musem
url: http://www.tk.airnet.ne.jp/mit/mitland/Musium/NEC/TK-80.html
text: Quite interesting page with pictures (Japanese)
- title: IC Collection
url: http://www.st.rim.or.jp/~nkomatsu/evakit/TK80.html
text: Very complete description of a TK-80E (japanese)
comments:
- author: WEazel
date: Friday 4th May 2012
text: its rare and semi collectable u cant relistic buy it but theres nothing stoping u bilding a simular device the cpus are still made based on thoughs designs
- author: Eddy (The Netherlands)
date: Sunday 15th August 2004
text: Where can I get a TK 80?
oc_id: 405
source:
url: https://web.archive.org/web/20230327100339/http://www.old-computers.com/museum/computer.asp?c=405
date: '2023-03-27'
---
The NEC TK 80 is a 8080-cpu Training Kit (hence the "TK") computer sold at the end of the 70's. It is considered the first japanese home-computer. It was firstly aimed at technicians, but it met a great success with first computer hobbyists. It was often sold as a kit.
The systems is directly programmed in machine-code through the hexadecimal keyboard. There are 9 "function" keys on this keyboard : RET, RUN, STORE DATA, LOAD DATA, RESET, ADRS SET, READ INCR, READ DECR, WRITE INCR.\
Information is displayed on the built-in 7-segments LED display (1 line, 8 characters).
The **TK-80E** is low-cost TK-80. The CPU and some chips are slightly different (uPD8080AD -> uPD8080AFC, uPD8228D -> uPD8228C, uPD454D -> uPD464C, uPD5101E -> uPD2101AL-4), thus reducing the production cost (ceramic -> plastic). Of course the TK-80E was less expensive.
The **TK-80 BS** was a "Basic Station" model. It was composed of a TK-80 board with a BASIC ROM built-in, 7k RAM and an alphanumeric keyboard. Furthermore there was the [Compo BS/80](/museum/nec-compo-bs-80/) which was a TK-80 with its Basic extension within a nice moulded plastic case.
The TK-80 was used as a base for the [PC-8001](/museum/nec-pc-8001/), the [PC-8801](/museum/nec-pc-8801/) and the [PC-9801](/museum/nec-pc-9801-e/).
---
Picture courtesy of [Electric Brain Museum](http://www.tk.airnet.ne.jp/mit/mitland/Musium/musium.html).