Abstract: A crossbar structure for use in a multi-processor computer system to connect a plurality of processors to at least one shared resource. The crossbar structure comprises for each processor, a storage location for receiving from a respective processor a memory address of a lock control structure associated with the shared resource. When the processor needs to acquire a lock thereto, the crossbar structure, on behalf of the processor, performs memory operations on the lock control structure at the address specified in the storage location in order to acquire the lock on behalf of the processor.

Abstract: A wheel balancing device is provided having a plurality of wheel balancing weights attached to a top surface of an elongate tape and a backing strip removably attached to and protecting an adhesive layer on the bottom surface of the tape with the backing strip having a width greater than that of the tape to facilitate removing the backing strip from the tape prior to installation of the wheel weights onto a rim of a wheel. The greater width of the backing strip as compared to the tape facilitates removal of the backing strip from the tape by a user who may simply grab a portion of the backing strip which extends beyond the tape to peel away the backing strip. Preferably, the plurality of wheel balancing weights are connected in end-to-end relationship on the tape and are preformed of a generally uniform size and weight.