A data processor includes a memory accessing agent and a memory controller. The multi-layered blanket material is outfitted with an attachment member, wherein a first portion of the attachment member is connected to the multi-layered blanket material and a second portion of the attachment member is applied to a surface surrounding an opening. Each bistable cell comprises at least two elongated members that are connected to each other at their ends. One or more atomic agents may be applied to the actor to modify the actor’s appearance or behavior without requiring any communication or interaction with the program code that defines the actor. At least one of a long-aperiod fiber grating and a long-period fiber grating is positioned between the first short-period fiber grating and the second short-period fiber grating.