Part of a total Digital solution to your AP400 PSU 350683-001 needs, the 16-bit Rainbow personal computers function as a stand-alone desktop system as well as an extension of a larger system, such as an AP400 PSU 350683-001 1 Office Information System. The Rainbow personal computer is available in three different models: • Rainbow 100B, a floppy-based system • AP400 PSU 350683-001 100 + , a Winchester-based system • AP400 PSU 350683-001 190, an office workstation The only difference between Rainbow 100B and a AP400 PSU 350683-001 100 + system is the 20-Mbyte internal hard disk of the 100 + . All three Rainbow family members are fully compatible and offer a set of capabilities designed to satisfy different levels of user needs. You can AP400 PSU 350683-001 easily upgrade from a Rainbow 100B to a 100 + without abandoning your previous hardware or software purchases.