Reverse engineering RAM storage in early Texas Instruments calculator chips
Reverse-engineering the clock chip in the first MOS calculator
CPU Power Calculator - Download & Review
Anybody know what type of processor the fx-85GT PLUS calculator has? Its honestly just out of interest but I can't find stuff online and the processor is under this black blob :/ :
BA-35 Processor Chip
Calculator - Wikipedia
HP Classic Calculator Emulator
Anyone here who knows how to remove this thing and access the CPU on a calculator? : r/calculators
Upgrading A Soviet Calculator With A Modern CPU | Hackaday