Technical Desktops

98603B BASIC 5.1 ROM

200 Series Selection:

Name: 98603B BASIC 5.1 ROM
Product Number: 98603B
Introduced: 1988
Division: Fort Collins Systems
Original Price: $2020
Catalog Reference: 1989, page 659
Donated by: Dominique Berget (photo)


BASIC 5.1 DIO ROM for 200 and 300 Series computers. This plug-in board significantly increases the performance of 200 Series computers (as well as the 310 and 320) compared to systems with RAM-based operating systems. Documentation for BASIC 5.1 can be found here.

Collector's Notes:

These boards are very rare. Because of the high cost of ROM hardware and the rapidly changing nature of operating systems and software, almost all solutions were RAM-based by the end of the 1980s.

Dominique Berget has read the contents of the 12 ROMs on this board and created a replacement for this board, using more modern components. Click More Images to see a photo of the replacement board.

To learn more about this board or to share similar information on other HP 9000 products, contact Dominique on

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