Hewlett-Packard HP-41C Scientific programmable calculator

General specifications
Type Scientific programmable calculator
Production years 1979 - 1985
New price USD 325.00
Operating system n.a.
Chipset/CPU -
I/O 4 expansion ports
Performance index 2.8
Entry method Reverse Polish Notation
Precision 10 digits
Advanced functions

Forensic result 9.000417403

Scientific programmable calculator: Hewlett-Packard HP-41C
Programming model Fully-merged keystroke entry
Programming features

Program display Mnemonic
Program editing Auto-insert program entry
Programming 441 bytes
Data 63 numbers
Functions + -
Type LCD
Size 12 14-segment characters
LWH 1407625 mm
Weight 198 g
Batteries 4N
External power HP adapter (with battery pack)
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This is a true pocket computing device. It was the worlds first alphanumeric calculator. This allowed you to create programs that you could simply call by entering the program name, instead of having to remember under which number-label or key you stored the program.

The 41C comes with 4 expansion slots which can be used to connect RAM-packs, printers, magnetic card readers, etc. A magnetic card reader can be attached to the top, using one expansion port and blocking two more. The leather carrying bag that came with the device is actually large enough to hold the calculator with the magnetic card reader attached.

The memory of only 441 bytes isn't really large, but the 41C uses fully merged keystroke programming, making it a very efficient calculator to program.

It is mentioned that the 41C can be used with an extenal power adapter, but my example does not have any connectors to plug one in. There may have been different variant around.

Check www.hp41.org for lots of info about the HP-41.


Scientific programmable calculator: Hewlett-Packard HP-41C

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This page was last modified on May 11th, 2008

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