Methods and systems for software delivery are described. The assigning unit is configured to determine, for each pattern-by-color portion, whether or not the user’s designation of the pattern-by-color portion has been received. During booting of an operating system a device is identified for which a driver is needed. A U-shaped edge portion of each tray acts like a dampening spring to absorb impact to the tray, such as if dropped, for example. Succinimide copolymers of relatively high weight average molecular weight and high purity can be produced in relatively high yields while employing a relatively low catalyst loading.