Traditional hard disk drives use the direction of the magnetization of magnetic materials to store binary data. The magnetization can be controlled with magnetic field, light or electrical current ...

A disk's surface is divided into concentric tracks (circles within circles), and the thinner the tracks, the more storage. The data bits are recorded as magnetic spots on the tracks in one ...

This has important implications as far as preservation goes – it’s best to record the flux changes themselves, and create an image of the exact magnetic state of the disk, and then process ...

Due to its fast spin, close proximity to Earth and the fact that its magnetic pole ... to peer at this disk. The resulting photos provide the clearest-ever image of Vega's dusty disk and show ...

lumbar disk herniation, inflammation, and more. MRI is a noninvasive diagnostic tool that uses radio waves and a magnetic field to produce detailed images of the inside of a body. The technology ...

The computer's storage media prior to solid state drives (SSDs). Magnetic tape and disks were developed in the 1950s and commonly used together in companies for decades. Tape was the primary ...