The HP-48 reference article from the English Wikipedia on 24-Jul-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

HP-48

The HP-48 is a series of electronic graphing calculators produced by Hewlett-Packard from 1990 until 2003. The calculators in this series were the HP-48S, HP-48SX, HP-48G, HP-48GX, and HP-48G+, the G models being extended, improved versions of the S models.

The HP-48G II is not really a member of the series, but rather much more closely related to the HP-49G and HP-49G+. The 48SX and 48GX were expandable via special RAM (memory expansion) and ROM (software applications) cards that could be purchased.

References

• Byrne, Diana K., et al. (1994). An Advanced Scientific Graphing Calculator. Hewlett-Packard Journal, August 1994, pp.6–22.

External links

• The Museum of Hewlett-Packard Calculators: HP-48S/SX
• HP-48 Wiki
• USENET comp.sys.hp48 Newsgroup

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