This invention relates to personal computers, and to the handling of input/output signals exchanged between a microprocessor included within a personal computer and devices remote from the microprocessor. In addition to the microprocessor and a system board mounting the microprocessor, a personal computer...http://www.google.co.uk/patents/US5659773?utm_source=gb-gplus-sharePatent US5659773 - Personal computer with input/output subsystem
