In one embodiment, a cache element allocation method is provided. The machine controller is operable to identify a need for a human interaction, place the machine into a ready state for the human interaction, and generate a ready message responsive to placing the machine into the ready state. The suggested multi-antenna system feed device applies in particular to the extension of multi-antenna or sector antenna systems, used especially in devices with Multiple InputsOutputs of the MiMo type and more specifically to mesh network architectures. The method also includes assigning locations on the disk for the partitions from the largest to the smallest wherein the partitions are filled in the available blocks from end to beginning. Particular embodiments concern dispensing a nanosolution onto a sample using an automated system, heating the sample, and performing a sample staining process.