Top 10 facts about the world. Throughout history, storytellers, playwrights and writers of all kinds have woven tales of terrible deeds, tragedies, courage, and conquering. In each case, the story has a main character, sometimes called a protagonist.
HP Smart Array controllers store a redundant copy of the controller firmware image to protect against data. corruption. If the active firmware image becomes corrupt, Smart Array controllers use the redundant. firmware image and continue operating.
A passive infrared sensor (PIR sensor) is an electronic sensor that measures infrared (IR) light radiating from objects in its field of view. They are most often used in PIR-based motion detectors. 1 Operating principles.