May 20, 2006

World’s First Hard Drive - 1956

Amazing how much technology can change in a relatively short amount of time. “These disks are mounted so as to rotate about a vertical axis, with a spacing of three tenths of an inch between disks. This spacing permits two magnetic heads to be positioned to any one of the 100 concentric tracks which are available on each side of each disk. Each track contains 500 alphanumeric characters. Total storage