Hewlett Packard HP-48SX
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Hewlett Packard HP-48SX
- Type: Programmable RPN Electronic Calculator
- Size: 3.25 x 7 inches / 8 x 18 cm
- Serial number: 3314S000103
- Date of Manufacture: April 1993
Accessories:
With soft case, quick reference pamphlet and manuals. When the 28 series came out after the 41 series was discontinued, people were pretty excited (I know I was), but they were a little bemused too. Neat calculator, they said, but will that hinge really hold up? Why can't I assign my own keys? There's no place to add an application module. No way to put a program in memory at all, besides the keyboard. No way to make backups, except to get a printer. Where are my registers?
Well, HP listened to their customers, and it may be the last time they ever did so. (This was before the Agilent spinoff, and HP still thought they were in the business of selling engineering tools, you see.) They made a more traditional form factor, added assignable keys, a serial port (backed up by a Kermit server!) and a pair of PCMCIA-like ports to add memory and application modules.
Then they improved the way measurement units could be applied to numbers, worked over the binary math section a little bit, added date and time features (with alarm catalog) and an equation catalog. Daddy was a 41, Mommy was a 28.
For the budget-minded, there was also the HP-48S, with all the above features except the PCMCIA ports.
The 48 series was among the last that was manufactured by HP. After the Agilent spinoff (and why didn't they give Agilent the calculator division, anyway?), HP farmed off manufacture to Kinpo. At the time of writing, HP's calculator line, while still being manufactured, is stagnant.
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