HP 48SX

The Hewlett-Packard 48SX is probably one of the best RPN graphing calculators ever made.

It has a 2MHz 64-bit Saturn processor (custom design by HP), 32kB RAM, 131x64 pixel LCD, and two expansion card slots.

Pictures ↵^

Documents ↵^

• HP Journal (June 1991) — Hardware design of the 48SX calculator (and other articles) (PDF, 2.5MB)

Links ↵^

• HP48 Software Archive (lots of useful programs for the HP48 and other HP calculators)

[ View other machines in my hardware collection ]