A computer system includes a system bus having a plurality of address lines and having a first control line. A connector is coupled to the address lines and the first control line, and can removably receive a circuit card which can accept and/or generate signals on the address lines and first control...http://www.google.de/patents/US5317721?utm_source=gb-gplus-sharePatent US5317721 - Method and apparatus to disable ISA devices for EISA addresses outside the ISA range
