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A buffer that stores a depth value for each pixel in a scene. Pixels with a small z-value overwrite pixels with a large z-value.

A stack of overlapping windows. Each window has a unique position in the z-order.

Zero Power State (ZPS)
A power state that indicates a hibernation state in which the automotive computing device powers off all RAM and other subsystems.

zeroth order clock correction
A rough numerical measure of the bias in the time reported by a Global Positioning System (GPS) satellite.