New product applications: Plotter draws multicolored graphics at 25-micrometer resolution; `microgrip¿ drive uses no stepper motors

The HP 7470 two-pen graphics plotter measures 43 by 36 by 13 cm and is compatible with desktop, personal, and largar computers from hewlett-Packard, IBM, Apple, and commodore. Conversational software is available to drive the unit, which is priced at $1550.