Method and apparatus for communicating peripheral data to/from m

Details Method and apparatus for communicating peripheral data to/from m Method and apparatus for communicating peripheral data to/from m

1991-12-23

1994-04-05

Richardson, Robert L.

395650, G06F 1300

Patent

active

053012771

ABSTRACT:
A computer system eliminates overhead due to overlapping input processing for a keyboard, etc., by two operating systems, where one is a minor operating system operating as a subprocess of the other, which is a main operating system. The system uses an interrupt from a keyboard interface for input processing. A data input from the keyboard is determined as to whether or not it has been assigned to the minor operating system. If it has been assigned to the minor operating system, the key data is written directly to the key data buffer by the driver of the main operating system. The application program executable under the minor operating system can receive key data from a keyboard driver of the minor operating system.

REFERENCES:
patent: 4530052 (1985-07-01), King et al.
patent: 4747040 (1988-05-01), Blanset et al.
patent: 4885681 (1989-12-01), Umeno et al.

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