Hand Picked: HP 75C Handheld Computer
The HP 75C was the first product Hewlett-Packard designed and marketed as a full-blown handheld computer rather than a calculator. The 75C was programmable in BASIC, had a magnetic card reader and used an HP-IL interface to connect to a variety of peripherals, including printers. Its built-in applications, such as the ability to store and edit text and an appointment reminder system, anticipated much of what people would come to expect from their personal electronics.
( C ) HPCA