17 Jun 1951 Jahr - Hard Disk

Beschreibung:

Rabinow
based on ideas of magnetic tape
According to Harvard Business School professor C. M. Christensen, 138 firms entered the disk drive business in the U.S. and overseas between 1956 and 1990. The number of active manufacturers peaked in 1985 at 75. By 1993 more than 100 had failed as the industry became one of the most competitive in high technology. As of 2015, only three remained; Seagate, Toshiba and Western Digital. This intense level of competition drove developments that yielded dramatic increases in areal density and therefore reductions in the cost per bit and established HDDs as the preferred form of computer storage.
http://www.computerhistory.org/storageengine/hdd-competitors-enter-the-market/