As the title states, what is the unit measure used to detect magnetic indentations in a hard drive?
To clarify, what I mean by indentation is, what is measured to determine if a byte is a 1 or 0?
English Language & Usage Stack Exchange is a question and answer site for linguists, etymologists, and serious English language enthusiasts. It only takes a minute to sign up.Sign up to join this community
Magnetic Hysteresis is the measure used to determine electrical changes in the magnetic indentations on a hard drive disk. Though the tesla or gauss are units of measure for magnetism, when taken alone they cannot properly measure nor set (write) the magnetized media on-disk. The dynamics of hysteresis present a mechanism that can provide reliable basis for for measurement.
The magnetic indentations themselves are called magnetic domains.