Ampex Corp: Digital Storage Message Board

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Technology Stocks : Ampex Corp: Digital Storage

AMPX 7.887

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3:59 PM EST

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To: jonggua who wrote (2033)	3/3/1997 4:04:00 PM
From: Gus	of 3256

Some more info from lacie.com What technological improvements will affect hard disks in the near future? Hard disks have undergone considerable evolutionary improvements and miniaturization since their introduction by IBM in 1956. Hard disks that store 1 GB on 3.5- and 5.25-inch platters are available today at a price most users can afford. A number of manufacturers now offer 1.3- and 1.8-inch drives, which are the smallest drives currently available, on a PCMCIA card. Although manufacturers have improved drive performance considerably, most of their engineering efforts are focused on increasing drive capacity while reducing drive size. This trend toward packing more data on a square inch of disk media has continued at a pace of about 50% per year in the last few years. A discussion of some promising future technologies follows. Memcor Memcor, which uses a special glass-ceramic and a MemCor substrate, is microscopically smoother than the nickel substrate used on today's aluminum disks. This smoother, flatter disk lets the read/write head operate closer to the disk and access a smaller area; this allows more information to be packed on a disk platter. Giant magneto resistance A magneto-resistant head is a specially magnetized head that is much more sensitive than conventional heads. The result is that these heads can read smaller areas on the disk. In the future, this technology may enable drives to achieve a density 30 times greater than that of current disk platters. PERM (Pre-embossed rigid magnetic) A PERM disk contains special, narrow grooves that hold more data tracks per inch than do conventional disks. In the near future, these drives may hold 15,000 tracks and store as much as 1.5 Gbytes of data.

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