a one-line display such as the HP-75, although such devices were not popular for long. The HP 9835 was also used as the basis for a business computing system, and later the HP 250 which lives on as an application platform. In 1979 the 85, the first of the 80 series of personal desktop scientific computers, was produced. It had a powerful BASIC interpreter, and was affordable by individuals whose employers might have expensive 9845s. That division evolved to produce UNIX HP 9000 series workstations, also acquiring the Apollo Computer Company. HP Basic would later evolve into Rocky Mountain BASIC for workstations, which is still in use today to support legacy applications. See also HP BASIC (disambiguation) XYZZY (hidden command) MAME provides emulators for the 9825 and 9845. Notes External links hp9825.com – The Second-Generation HP Desktop Calculators hp9831.com: HP 9831 BASIC computer like HP 9825 hp9825.com: HP 9825A chassis/enclosure development by industrial designer Leroy Lacelle HP 9845 – the top line of the 9800 series] 9830 Computer-related introductions in 1972 9800 series