magnetic layer
31Network Abstraction Layer — The Network Abstraction Layer (NAL) is a part of the H.264/AVC Video Coding Standard. The main goal of the H.264/AVC NAL is the provision of a network friendly video representation addressing conversational (video telephony) and non… …
32Giant magnetoresistance — Founding results of Fert et al. Giant magnetoresistance (GMR) is a quantum mechanical magnetoresistance effect observed in thin film structures composed of alternating ferromagnetic and non magnetic layers. The 2007 Nobel Prize in physics was… …
33Spin valve — A spin valve is a device consisting of two or more conducting magnetic materials, that alternates its electrical resistance (from low to high or high to low) depending on the alignment of the magnetic layers, in order to exploit the Giant… …
34Domain wall — A domain wall is a term used in physics which can have one of two distinct but similar meanings in magnetism, optics, or string theory. These phenomena can all be generically described as topological solitons which occur whenever a discrete… …
35Head crash — A head crash in a modern drive. Note circular mark on the platter. A head crash is a hard disk failure that occurs when a read–write head of a hard disk drive comes in contact with its rotating platter, resulting in permanent and usually… …
36LIMDOW technology — Light Intensity Modulated Direct OverWrite (LIMDOW) technology uses a different write technology which significantly improves on the performance levels of earlier Magneto optical devices and claims to be a viable alternative to hard disk drives… …
37RA90 — The RA90 disk drive was the first Digital Equipment Corporation drive to be based on thin film technology. Prior to the RA90 all Digital disk drives used oxide disks, which were an aluminum disk coated with a polyurethane binder resin containing… …
38Advanced Photo System — under the brand name Advantix .The film is 24 mm wide, and has three image formats: * H for High Definition (30.2 × 16.7 mm; aspect ratio 16:9; 4x7 print) * C for Classic (25.1 × 16.7 mm; aspect ratio 3:2; 4x6 print) * P for panoramic (30.2 × 9.5 …
39diskette — n. (Computers) a data storage medium consisting of a small plastic disk coated with a thin layer of magnetizable material on one or both sides, enclosed in a stiff envelope with a radial slit. It is used in a specially designed disk drive, in… …
40geomagnetic field — Magnetic field associated with the Earth. It is essentially dipolar (i.e., it has two poles, the northern and southern magnetic poles) on the Earth s surface. Away from the surface, the field becomes distorted. Most geomagnetists explain the… …
