DATAMATH CALCULATOR MUSEUM |
Additional Pictures
The Hewlett-Packard HP 30b Business Professional calculator in its package. |
The HP 30b Business
Professional is delivered with a very nice pouch. |
This Hewlett-Packard HP 30b Business Professional was manufactured in April 2010 by a contract manufacturer in China. |
The printed circuit board (PCB) of the HP 30b hides the single-chip calculator circuit under a black epoxy blob. |
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, May 16, 2011. No reprints without written permission.