Computer revision port
US4649514A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 30, 1983 |
| Grant date | Mar 10, 1987 |
| Priority date | — |
| Expiry date | Nov 30, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/385
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Circuitry for automatically configuring the operating system software of a computer is disclosed. The circuitry includes a revision port which generates a unique eight-bit code indicating the latest revision level of the main circuit board in the computer. Each time revisions are made in the board during manufacturing or each time a circuit board containing new revisions is put into the system by maintenance or service personnel, the eight-bit code generated by the port is changed. During the process of configuring the operating system software, the central processing unit reads the code generated by the port and uses the revision information to load and link software routines which will operate properly with the revised circuitry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.