Nippon Tandem Computers has received orders from two medium-sized securities companies, Yamatane Securities and Cosmo Securities for NonStop VLX computers for use in a home share trading system: these provide an interface with Nintendo Co Famicon Family computers to allow people to play with their portfolios via the TV 24 hours a day; the system will also interface with IBM hosts at Yamatane and Fujitsus at Cosmo for back-office processing.