A phase change memory is provided with a write data register, an output data selector, a write address register, an address comparator and a flag register. The side cover assembly further includes a parking pawl arranged to engage with the parking gear, a support member arranged to support the parking pawl; and a return spring. Preferably no mechanical or electro-mechanical devices, such as solenoids are included in the polarity protection circuit. During power down or entry into a hibernate mode, the computer system determines the static and dynamic configuration data to be stored in flash memory based on a history of prior uses. The shoulder skinner is substantially similar to the neck skinner except that the pinch point of the shoulder skinner is positioned to engage the shoulder area of an incoming chicken.