A method of enabling variable latency data transfers in an electronic device, such as an FPGA with an embedded processor, is described. According to one embodiment, a hard disk drive comprises an enclosure, a motor for rotating a magnetic disk, an actuator for supporting a head slider for accessing the disk, and a ramp for loadingunloading the head slider disposed in the enclosure. Then an emitter window is etched through the polysilicon external raised base down to the top layer of silicon oxide. The present invention also provides a method for the preparation of gel-free homopolymer of 4-hydroxybutyl acrylate substantially in the absence of a chain transfer agent in an alcohol or in solution of alcohol and water. The control circuitry controls the video switcher and other outputted signals based on data file information that corresponds to content of the prerecorded image or media. The first and second nozzles are adapted to define together a substantially X-shaped cut on the traveling continuous web defining at least a substantially V-shaped tail for ending a forming roll, an opposite substantially V-shaped start for starting a new spool, a detachable first wing and a detachable second wing.