Computer system with plug-in override of system ROM

摘要: A portable computer system with a special connector, on the motherboard, into which field-installable boot card can be inserted. The motherboard connector is wired so that operator, by setting connections card, bypass memory and force to from card. This permits technician, in field, temporarily override internal nonvolatile holds basic software. recovery of software has been corrupted. Preferably flash EPROM, rewritten, appropriate jumpers after booted preferably located accessible through removable cover. also used for temporary attachment diagnostic display