Abstract: A material supporting system for a pick-up truck includes a platform with side members oriented parallel to one another; and cross-members interposed between the slide members. The system also includes support legs, first tracks, second tracks and roller assemblies. One of the roller assemblies is attached to a first end of one of the slide members. One of the support legs is attached to a second end, opposite the first end, of said slide member; and one of the roller assemblies is attached to said support leg.

Abstract: A roof-mountable retractable cargo securing system for cargo positioned in an open bed of a pick-up truck, the system may include two roof-mountable base tubes interconnected with a connecting plate so that longitudinal axes of the base tubes are separated by a distance that exceeds a width of the cargo to be secured. Securing members concentric with and slidably engaged with the base tubes may be selectively enclosed within the base tubes or partially extended from the base tubes to positions at sides of the cargo to be secured. Contact arms may be pivotally coupled to ends of the securing members and rotationally positionable to interconnect the securing members with the cargo to be secured.

Abstract: Disclosed is a disk drive having a disk, a masked read-only memory (ROM) device, a reprogrammable nonvolatile memory device, and a microprocessor for executing program code. The disk has a magnetic data storage surface with embedded servo wedges for defining data storage tracks including reserve tracks. The masked ROM device stores program code for implementing a spindle motor controller, program code for implementing a portion of a servo controller for track following along a data storage track, and program code for implementing a portion of a disk controller for controlling writing disk data to and reading disk data from the reserve tracks. The reprogrammable nonvolatile memory device stores data parameters relating to the disk drive's configuration. The reserve tracks store program code for implementing a cache control system for controlling caching of disk data in a cache memory.