In a Constant Access Time Bounded cache, if a dirty line in a search group of the cache is selected for eviction from the cache, marking the dirty line as evicted, selecting a replacement line from a reserve, and inserting the replacement line into the search group. In an embodiment, a plurality of discrete hollow bio-absorbable segments spaced apart from one another and encapsulated using a bio-absorbable material to form an elongated member configured to be implantable in patient tissue using a hollow needle. The keyboard is adapted for the use of a user’s non-dominant hand, allowing the user’s dominant hand to manipulate a cursor controlling device, such as a computer mouse, without switching back and forth between the keyboard and cursor controlling device.