Technique for easily changing operating systems of a digital computer system using at least two pushbuttons
US6327653A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 23, 1998 |
| Grant date | Dec 4, 2001 |
| Priority date | — |
| Expiry date | Nov 23, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/4406
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A technique for easily changing an operating system or working mode of a digital computer system includes: a CPU (central processing unit) for processing computer programs; a bus which transmits information to each system element by connecting elements to each other; a first memory connected to said bus, for temporarily storing system software and user software executed by the CPU; a second memory connected to said bus, for storing a system initialization program executed within the CPU; a backup memory which is connected to said bus and stores an operating system of a user by storing information of said first memory and system hardware; and a button detector for detecting operation of one of a plurality of buttons, each of said plurality of buttons corresponding to an operating system or working mode, said button detector providing an output to said central processing unit via said bus for causing the computer system to change operating systems or working modes in response thereto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.