Software house Toyo Information Systems Inc, developer of the Brains expert system development tool, is to reimplement the mainframe version of the package to the 32-bit Unix workstation environment, and release it for sale from this month, at a price which is expected to be around one-fifth of the current price on mainframes; the first workstation on which it is to be sold is the Sony News, where it will cost around $11,500, much less than the usual price of around $60,000; Toyo will also release a version for the Hewlett-Packard HP9000 Model 350 series in April and thereafter it will look at other workstations such as those of Sun, and looks to sell over 100 copies in the first year.