What does validating identity mean on a wireless network

Non-removable HDDs were called "fixed disk" drives.Some high-performance HDDs were manufactured with one head per track (e.g.More than 200 companies have produced HDDs historically, though after extensive industry consolidation most current units are manufactured by Seagate, Toshiba, and Western Digital.HDD unit shipments and sales revenues are declining, though production (exabytes per year) is growing.It was approximately the size of two medium-sized refrigerators and stored five million six-bit characters (3.75 megabytes), the 1301 used an array of heads, one per platter, moving as a single unit.Cylinder-mode read/write operations were supported, and the heads flew about 250 micro-inches (about 6 µm) above the platter surface.