First Geeky Gift: TI-59 Calculator and PC-100C Printer
Member AnsuGisalas remembers his dad's TI-59 Calculator that could dock to a PC-100C printer, thereby converting it into an adding machine. Quite an interesting concept from the '70s, making a calculator that could be converted into an adding machine. It probably made it cheaper because you only had to purchase the calculator portion once.
Image courtesy DataMath.org