read-write head
111Controller (computing) — In computing and especially in computer hardware, controller is a chip, an expansion card, or a stand alone device (usually called a control unit) that interfaces with a peripheral device. This may be a link between two parts of a computer (for… …
112Embedded servo — or wedge servo is a type of servo configuration used on hard disks. Embedded servo systems embed the feedback signals for the read/write head positioner (usually a voice coil motor) inside gaps ( wedges ) in the data tracks of the disk. This… …
113History of computer science — The history of computer science began long before the modern discipline of computer science that emerged in the twentieth century. The progression, from mechanical inventions and mathematical theories towards the modern concepts and machines,… …
114Fragmentation (computer) — In computer storage, fragmentation is a phenomenon in which storage space is used inefficiently, reducing storage capacity. The term is also used to denote the wasted space itself.There are three different but related forms of fragmentation:… …
115Seagate ST1 — The Seagate ST1 is a miniature 1 inch hard drive with the CompactFlash Type II form factor, much like IBM s Microdrive. Unlike Sony and Hitachi and allegedly GS Magic branded drives Seagate developed their technology from scratch. Although many… …
116Memory latency — In computing, memory latency is the time between initiating a request for a byte or word in memory until it is retrieved. If the data are not in the processor s cache, it takes longer to obtain them, as the processor will have to communicate with …
117The Disintegration Loops — Studio album by William Basinski Released 2002 …
118Extended PRML — In magnetic storage for computers,extended partial response, maximum likelihood, also known as extended PRML or EPRML, is an evolutionary improvement on the PRML design that has been developed over the last few years. The advance was the result… …
119Zero seek — is a mechanical engineering design component of most computer controlled data storage devices, including floppy disk drives, tape drives, and early hard drives. Most early data storage devices were controlled primarily by stepper motors, which… …
120tape drive — Computers. a program controlled device that reads data from or writes data on a magnetic tape which moves past a read write head. [1950 55] * * * …
