Electrical computers and digital data processing systems: input/output

SECTION I - CLASS DEFINITION

This class provides, within a computer or digital data processing system, for the following subject matter:

A. Processes or apparatus for transferring data from one or more peripherals to one or more computers or digital data processing systems for the latter to process, store, or further transfer or for transferring data from the computers or digital data processing systems to the peripherals;

B. Processes or apparatus for interconnecting or communicating between two or more components connected to an interconnection medium (e.g., a bus) within a single computer or digital data processing system;

C. Processes or apparatus for preventing access to a shared resource of a computer or digital data processing system;

D. Processes or apparatus for granting access to a shared resource of a computer of digital data processing system by one of a plurality of components of the computer or digital data processing system by interrogating each of the components in a predetermined order;