Quantum

Quantum Corporation (NYSE: QTM) is a manufacturer of tape drive, tape automation, data deduplication storage products and scalable file storage software, based in San Jose, California. From its founding in 1980 until 2000, it was also a major disk storage manufacturer (usually #2 in market share behind Seagate), and was based in Milpitas, California. By 2000, the hard drive market was getting squeezed. Personal computer sales were dropping, value drives had razor-thin margins and were only getting thinner, and several makers (notably Western Digital) were in trouble. Quantum decided to sell its hard drive division to Maxtor at this time. Maxtor continued most of Quantum's disk storage products and brands until it was acquired by Seagate Technology on December 21st, 2005.

Quantum got its start when executives and designers from Shugart Associates, IBM and Memorex came up with an idea for an 8-inch hard drive that would achieve decent performance without the cost or complexity of using a full closed-loop servo system — a difficult task before the advent of dedicated servo ICs and readily-available DSPs.

Quantum made a few missteps during the late 1990s. After hitting its peak with the Fireball AT 1080 and Fireball AT 1280 (both high-performance 5400 rpm models), it skewed briefly toward "value" drives that concentrated more on capacity than speed or performance. The Bigfoot drive was the best-known product of this era; it used a 5.25-inch form factor and larger disks to increase drive capacity without forcing an increase in areal density. However, the Bigfoot drives had slow spindles (the first ones ran at only 3600 rpm, long obsolete by then), and the larger disk diameters meant the heads had to move farther when seeking. They were thus generally disliked by "power users", and found their way mostly into inexpensive brand-name PCs.

Quantum also applied the "Fireball" name (which had previously been reserved for the high-end 1080 and 1280 models) to a new "TM" model that featured better throughput, but slower seek times due to a 4500 rpm spindle. Later versions of the Fireball series reversed this trend, and eventually a 7200 rpm Fireball Plus ATA version was released, being one of the first mainstream consumer-oriented 7200 rpm drives. The first of the Plus series was the Fireball Plus KA, a drive available in sizes up to 18.2 gigabytes, and equipped with the new Ultra DMA 66 interface.

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