Masternet, a personal computer communications service company set up by Meiji Milk, has developed a communications adaptor which conforms to the JUST standards of the Japanese Ministry of Posts and Telecommunications: it will cost around $600, much lower than comparable adaptors offered by NEC and Logic Systems International, runs at 4,800 bps, with security in the form of an incorporated user number, and is intended for applications such as tele-shopping and online distribution of microcomputer software; the Masternet host is a Prime minicomputer, with pre-processing on a Net 25 packet switch from Florida-based Telematics International.