A feature of the HUD Code which states that it may not be modified in any way by local or state building codes The HUD Code preempts all other building codes with regard to manufactured housing
An abrupt removal of a previously scheduled infomercial (or any) broadcast It happens most often for a breaking news story
In general, the doctrine that certain matters, either implicitly or by explicit expression of Congress, are of such a national, as opposed to local, character, that Federal laws supercede or take precedence over State laws ERISA has a very broad explicit preemption of any State law that "relates to" an employee benefit plan, whether or not the State law conflicts with ERISA (ERISA §514(a), 29 USC 1144(a))
The seizure, usually automatic, of military system facilities that are being used to serve a lower precedence call in order to serve immediately a higher precedence call (188)
The act of interrupting a currently running program in order to give time to another task
The act of suspending the execution of one thread and starting (or resuming) another The suspended thread is said to have been "preempted" by the new thread In QNX, whenever a lower-priority thread is actively consuming the CPU, and a higher-priority thread becomes READY, the lower-priority thread is immediately preempted by the higher-priority thread