with the MC6847 Video Display Generator and the MC6883 Synchronous Address Multiplexer. The BIOS for the Dragon 32 was written based on specifications and API drawn up by Microsoft and, to a certain extent, PA Consulting of Cambridge. The Dragon was a much improved unit with video output in addition to the TV output of the CoCo and CoCo 2. It also featured a Centronics parallel port (not present on any CoCo), an integrated 6551A serial UART (on the Dragon 64), and a higher-quality keyboard. In 1983, a version of the Dragon was licensed for manufacture for the North American market by Tano Corporation of New Orleans, Louisiana. Tano started production at their facility in September 1983 and were running at capacity one month later. Sales did not meet expectations and Tano stopped production and support after a year. In Brazil, there were several CoCo clones, including the Prológica CP-400 Color and CP400 Color II, the Varixx VC50, the LZ Color64, the Dynacom MX1600, the Codimex CD6809, and the vaporware Microdigital TKS800. In Mexico, the Micro-SEP, a CoCo 2 clone with 64 KB of memory, was introduced by the Secretary of Education. The Micro-SEP was intended to be distributed nationally to all the public schools teaching the 7th to 9th grades. They were presented as a design of the Center of Advanced Research and Studies of Instituto Politécnico Nacional. Like the Dragon, these computers also included video output. Whether these computers were "designed" by this institute, or were licensed from the original design, is unclear. A Taiwan-based company, Sampo, also made a CoCo clone, the Sampo Color Computer. The Sampo was supposedly available in Taiwan, Korea, and possibly other Asian countries. It is believed that Tandy blocked sales in the US with legal action due to copyright infringements on the ROM code. The TRS-80 MC-10, or Micro Color Computer, was sold in Radio Shack stores as an entry-level computer at a lower cost than the CoCo. Released in 1983, it was similar in appearance to the Timex Sinclair. Like the CoCo, it uses the MC6847 VDG and Microsoft BASIC, but with the MC6803 instead of the 6809. See also :Category:TRS-80 Color Computer games References External links CoCo Chronicles, a history of the Color Computer CoCopedia, TRS-80 CoCo Wiki CoCo3FPGA Wiki Color computer technical reference or as a PDF Color Computer/OS-9 Forum at Delphiforums 1984 Color Computer magazine ad Emulators Mocha,