Off-topic, but calling a physical record on a disk a "sector" has always rubbed me the wrong way: it's like calling a point in space a "Z" just because it is us

Off-topic, but calling a physical record on a disk a "sector" has always rubbed me the wrong way: it's like calling a point in space a "Z" just because it is usually the name of the last Cartesian coordinate. (The three coordinates of a physical record on a spinning disk are the cylinder, the track, and the sector.)