Compaq Computer Corporation, Inc.

Hewlett-packard Development Company, L.p.

Pamela M Cook

Sompong Paul Olarig

Paul R Culley

Alan L Goodrum

Brian T Purcell

Barry S Basile

William F Whiteman

Clarence Y Mar

Raymond Y Chow

Richard O Waldorf

Bus transactions in a computer network are improved by utilizing a multicast transaction from a single initiator to multiple targets. The multiple targets simultaneously execute the transaction and provide a return transaction to the initiator. The transaction cycle time is reduced as individual request to each target is replace with a single request to a collective target group, addressable by a single base memory address. Interleaved read or write operation is provided to allow the multiple targets of a particular target group to independently execute a portion of the transaction request. Improved bus performance is achieve by utilizing the higher throughput capacity of the system bus providing a higher number of shorter data segments from each target executing its portion of the larger transaction.

Supporting interleaved read/write operations from/to multiple target devices

A method for powering up a removable circuit card when it is inserted into a card slot of a computer system includes providing power and a clock signal to the circuit card. A communication link is electrically coupled to the circuit card after both the power and the clock signal are provided to the circuit card.

Removal and insertion of expansion cards in a computer system

Apparatus, and an associated method, converts a conventional computer peripheral device, such as an I/O (input/output) subsystem into an I.sub.2 O-aware device. An IOP mounted upon a connector card is connected to a computer bus to which the conventional computer peripheral device is connected. Once connected, the IOP, together with the conventional computer peripheral device form an I.sub.2 O-aware device.

System for forming an intelligent I/O (I.sub.2 O)-aware device by

Growing community of inventors

Spring, TX, United States of America

Pamela M Cook