HP-71B: 82490A or 82441A

[Marcus von Cube]

(08-26-2015 04:51 PM)smp Wrote:  I am not familiar with FRAM71. Is this some sort of add-on RAM device? What's the difference between FRAM71 and IRAM?

FRAM71 is a device created by forum member Hans Brüggemann. It fits the card reader slot of a 71B and provides non volatile RAM in 'gigantic' amounts (512 or 1024 KB, depending on hardware version). It is configurable and the maximum RAM available with a given configuration depends on what else is plugged into your 71B.

IRAM (Independent Random Access Memory) is just RAM memory that the 71 can address as a port. The FRAM71 can provide IRAM as explained above.