Quick off the mark, Emerald Technology Inc, Bothell, Washington reckons it’s the first with a bridge between IBM’s new RS/6000s and the AS/400. The company’s Handshake product line provides 5250 terminal emulation and file transfer for Unix minis and micros by linking IBM’s Systems Application Architecture with Unix sustems. Emerald has been granted IBM Business Partner status, which authorises it to market Handshake as an approved link between the IBM systems. It costs $2,340 to $5,400, depending on configuration. Handshake-Express offers file transfer between Unix processor and IBM mid-range system, eliminating the need for complicated network definition or additional application software. It is $1,050 to $1,600, depending on the configuration.