DATAMATH CALCULATOR MUSEUM |
Additional Pictures
The Main printed circuit board
(PCB) of the HP-65 is centered
around a HP-proprietary CPU module and supported by 3 ROM chips manufactured by Mostek, electronics for the integrated card reader and power supply. |
Close-up view of the custom-made CPU module with integrated RAM, external ROM and power supply. |
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, January 24, 2021. No reprints without written permission.