read-write head


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Related to read-write head: Thin film head

read-write head

Computing an electromagnet that can both read and write information on a magnetic medium such as magnetic tape or disk
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
A conventional magnetic disk-drive system has a voice coil motor that moves a stainless-steel load beam, which is linked through a slider bearing to the read-write head. The bearing and the read-write head move at acceleration rates up to 50 gs on a slender air cushion (only 50 nanometers thick) above the storage disk surface.
But as data densities increase to, say, 25,000 tracks per inch - the estimated capacity around the year 2001 - the width from track to track decreases to less than a micron, and the read-write head's position accuracy must be within 100 nanometers.
Schematic diagram (above) of a magnetic recording read-write head in contact
"Things we try to get smooth, sometimes we get them too smooth," he said, giving an example of the old read-write heads on hard drives.
Seagate Technology said it was turning its Derry plant into "the global technology leader in the production of read-write heads for hard disc drives".
, read-write heads and microchips) are leading to enhancements in finishing metallic components.
Seagate is a manufacturer of disc drives, magnetic discs and read-write heads, an innovator in tape drives, and a developer of Business Intelligence software.
Seagate is a manufacturer of disc drives, magnetic discs and read-write heads, an innovator in tape drives and a developer of Enterprise Information Management software.
Starting with green tea extract, he and his Ventana colleagues brewed up a concoction of chemically modified tea, synthetic proteins, and an abrasive to be used to finely polish, or lap, the aluminum-titanium-carbide ceramic slivers that become read-write heads. Tests now indicate that the fluid performs as well as a conventional polishing liquid, yet acts more quickly.
As disk developers are attempting to package more and more digital data into smaller areas, the read-write heads that transmit and receive this data also must be made smaller and moved closer to the storage medium.
Manufacturers already make commercially successful spintronics devices from metals, most notably the read-write heads in disk drives.
Roukes of the California Institute of Technology in Pasadena says his lab is striving to build a less ambitious MRFM instrument that could be used for examining the magnetized layers within read-write heads in computer hard-disk drives.