A portable hand-held machine M1 includes a keyboard M4, a display screen a microprocessor, and a memory. The machine includes a receptacle M2, and a connector M6 to enable connection to at least one removable carrier M3 comprising a memory associated with a microprocessor M8. Circuits are provided...http://www.google.fr/patents/US4523297?utm_source=gb-gplus-shareBrevet US4523297 - Hand-held processor with two-way dialog between microprocessor in case and microprocessor on carrier insertable into casing slot
Hand-held processor with two-way dialog between microprocessor in case and ...
