website/content/museum/nec-tk-80.md

title, categories, types, origins, years, cpus, params

title	categories	types	origins	years	cpus	params
NEC TK 80	Computers	Home Computer	Japan	1976	ìPD8080AD	name image company company_name specs tabs forum_thread photos adverts emulators links oc_id source TK 80 /media/museum/photos/nec_tk80_1.jpg /companies/nec NEC label value NAME TK 80 label value MANUFACTURER NEC label value TYPE Home Computer label value ORIGIN Japan label value YEAR 1976 label value KEYBOARD Hexadecimal keyboard, 25 keys\ TK-80 BS : full-stroke keyboard label value CPU ìPD8080AD label value SPEED 1.3 MHz label value RAM 512 bytes\ TK-80 BS : 5k label value ROM 2 kb ? label value TEXT MODES 8 characters x 1 line (7 segments LED display)\ TK-80 BS : 32 x 16 label value GRAPHIC MODES None label value COLORS None label value SOUND None label value SIZE / WEIGHT 310 × 180 mm label value I/O PORTS Expansion bus, EPROM sockets label value PERIPHERALS Optional cassette interface (300 bauds), RAM expansion, Basic ROM label value PRICE 88,500 Yen (Japan) photos adverts emulators links 403 title subtitle text image TK-80 /media/museum/photos/nec_tk80_3.jpg title subtitle text image DRAWING This is the picture used by the Windows emulator. Quite accurate ! /media/museum/photos/nec_tk80_2.jpg title subtitle text image JAPANESE AD Picture courtesy of Soichiro Oga / [Old PC leaflets museum](http://web.kyoto-inet.or.jp/people/s-oga/) /media/museum/pubs/nec_tk80_pub_1.jpg title url platform text TK-80 Windows Emulator http://www.watch.impress.co.jp/pc/docs/article/20000327/ascii.htm Windows Commercial Windows emulator delivered on CD-ROM with PDF original documentation title url text Electric Brain Musem http://www.tk.airnet.ne.jp/mit/mitland/Musium/NEC/TK-80.html Quite interesting page with pictures (Japanese) title url text IC Collection http://www.st.rim.or.jp/~nkomatsu/evakit/TK80.html Very complete description of a TK-80E (japanese) 405 url date https://web.archive.org/web/20230327100339/http://www.old-computers.com/museum/computer.asp?c=405 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 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, the PC-8801 and the PC-9801.

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Picture courtesy of Electric Brain Museum.