HP65 Museum.org

The HP 65 calculator was an amazing piece of technology for its time in the 1970’s and still highly valued among collectors today. A highly reguarded piece of engineering that NASA used on space missions in the 70’s as well. At the time real computer time was expensive at Universities and required keypunch cards,that had to be turned into computer data processing center to see if they would run and to retrieve a large print out, very time consuming. The HP65 was handheld had a magnetic card reader built in that allowed the user’s to write programs up to 100 steps or use preprogrammed magnetic card programs.
Original Msrp 795.00 (1974-77)

HP 12c calculator

The HP 12c calculator is easily one of the most successful calculator models of all time. Last year a 30th anniversary limited edition of the 12c was released. The current model(s) as well as the platinum edition released in 2003 are much more advanced than the originals (ex:400 lines of programming vs 99 lines on the original_due to technological chipsets and improvements. In 2008 they upgraded the chip sets to ARM with SDK available to flash new firmware as well.
The 30th anniversary HP 12c has an msrp 79.99.