yann64andClaude Opus 5.5
b274874139
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
113 lines
3.8 KiB
Markdown
113 lines
3.8 KiB
Markdown
---
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title: NEC TK 80
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categories:
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- Computers
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types:
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- Home Computer
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origins:
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- Japan
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years:
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- '1976'
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cpus:
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- ìPD8080AD
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params:
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name: TK 80
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image: /media/museum/photos/nec_tk80_1.jpg
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company: /companies/nec
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company_name: NEC
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specs:
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- label: NAME
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value: TK 80
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- label: MANUFACTURER
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value: NEC
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- label: TYPE
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value: Home Computer
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- label: ORIGIN
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value: Japan
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- label: YEAR
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value: '1976'
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- label: KEYBOARD
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value: |-
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Hexadecimal keyboard, 25 keys\
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TK-80 BS : full-stroke keyboard
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- label: CPU
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value: ìPD8080AD
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- label: SPEED
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value: 1.3 MHz
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- label: RAM
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value: |-
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512 bytes\
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TK-80 BS : 5k
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- label: ROM
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value: 2 kb ?
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- label: TEXT MODES
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value: |-
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8 characters x 1 line (7 segments LED display)\
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TK-80 BS : 32 x 16
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- label: GRAPHIC MODES
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value: None
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- label: COLORS
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value: None
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- label: SOUND
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value: None
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- label: SIZE / WEIGHT
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value: 310 × 180 mm
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- label: I/O PORTS
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value: Expansion bus, EPROM sockets
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- label: PERIPHERALS
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value: Optional cassette interface (300 bauds), RAM expansion, Basic ROM
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- label: PRICE
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value: 88,500 Yen (Japan)
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tabs:
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- photos
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- adverts
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- emulators
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- links
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forum_thread: 403
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photos:
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- title: TK-80
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subtitle: ''
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text: ''
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image: /media/museum/photos/nec_tk80_3.jpg
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- title: DRAWING
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subtitle: ''
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text: This is the picture used by the Windows emulator. Quite accurate !
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image: /media/museum/photos/nec_tk80_2.jpg
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adverts:
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- title: JAPANESE AD
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subtitle: ''
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text: Picture courtesy of Soichiro Oga / [Old PC leaflets museum](http://web.kyoto-inet.or.jp/people/s-oga/)
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image: /media/museum/pubs/nec_tk80_pub_1.jpg
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emulators:
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- title: TK-80 Windows Emulator
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url: http://www.watch.impress.co.jp/pc/docs/article/20000327/ascii.htm
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platform: Windows
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text: Commercial Windows emulator delivered on CD-ROM with PDF original documentation
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links:
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- title: Electric Brain Musem
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url: http://www.tk.airnet.ne.jp/mit/mitland/Musium/NEC/TK-80.html
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text: Quite interesting page with pictures (Japanese)
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- title: IC Collection
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url: http://www.st.rim.or.jp/~nkomatsu/evakit/TK80.html
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text: Very complete description of a TK-80E (japanese)
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oc_id: 405
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source:
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url: https://web.archive.org/web/20230327100339/http://www.old-computers.com/museum/computer.asp?c=405
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date: '2023-03-27'
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---
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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.
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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.\
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Information is displayed on the built-in 7-segments LED display (1 line, 8 characters).
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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.
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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.
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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/).
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---
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Picture courtesy of [Electric Brain Museum](http://www.tk.airnet.ne.jp/mit/mitland/Musium/musium.html).
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