In 1982, a 21-year-old Chris Espinosa faced a familiar challenge in software design: satisfying Steve Jobs’ exacting eye. Jobs had been critiquing Espinosa’s Macintosh calculator interface for days, ...
Are you nerdy enough for this? It is a replica of an HP-16C Programmer's Calculator. If you are into RPN and bit twiddling, this calculator is literally designed for you and you should immediately buy ...