-
First Hard Drive Announced
IBM Archives: IBM 305I BM announces the first hard drive, the IBM 350 that was to be included in the 305 RAMAC system by IBM. The first hard drive had an RPM of 1,200 and held up to 5MB of data. -
IBM Creates First Removable Drive
IBM Archives: IBM 1311 The IBM 1311 used the IBM disk pack and had a rpm of 1,500. The 1311 held 2.6MB of data. -
IBM Announces First Modern Hard Drive
IBM Archives: IBM 3340 IBM announces the first modern hard drive, the Winchester, also known as the 3340. The 3340 had three different types of data modules, 35MB, 70MB, and 70MB with .5MB being on fixed heads. -
RAID Technology Patented
RAID, redundant array of inexpensive disk, is patented by Norman Ken Ouchi at IBM. RAID technology allows several drives to work more efficiently together as one drive. -
First Thin-Filmed Head Hard Drive
IBM Archives: IBM 3370 IBM announced the 3370, which introduced the thin-filmed head to large disk hard drives. A single unit held 571.3MB of data, but a total of four could be used in one system for a total of approximately 2.3GB. -
First GB Hard Drive
IBM Archives: IBM 3380 IBM announces the first GB hard drive, which is the size of a refrigerator and weighs approximately 500 lb -
First Standard Size Drive
Wikipedia: ST-506 The Segate ST-506 is the first 5.25 inch drive; it holds 5MB of data and costed approximately $1,500.
