Abstract: A cleaning apparatus for cleaning a surface is provided. The cleaning apparatus has a housing for movement along a surface with a suction nozzle assembly having an inlet and outlet provided on the housing. A recovery container is removably mounted to the housing. A hose having a first end detachably connected to the outlet of the suction nozzle and a second end in fluid communication with the recovery container floor-scrubbing machine is provided. A vacuum source is in fluid communication with the suction nozzle, hose, and recovery container for drawing dirt from the cleaning surface into the inlet of the suction nozzle and into. The cleaning apparatus further includes a handle movably connected to the housing and movable between a first position that locks the first end of the hose to the housing to a second position that unlocks the first end of the hose to the housing.

Abstract: An apparatus and method that allow for the compatibility of data-storage disks with disk drives is provided. In an illustrative implementation, an exemplary disk drive for use on data storage disks reads the control logic sector of cooperating data-storage disks for a compatibility indicator. If the disk is compatible the drive performs read/write operations. If the disk is incompatible, the indicator is overwritten to ensure compatibility. From there read/write operations are allowed. The processing may be realized by machine instructions present in a control circuit of the disk drive.