Developments in storage device By Dion.Wampamba@stu.shc.ac.uk 1831 discovered two fundamental components of magnetic storage 1932 patent of cylinder coated with ferromagnetic material 1935 debut of the Magnetophon commercial audio tape recorder 1946 Cathode Ray Tube electrostatic effect enables random access memory 1951 NBS researcher‘s notched disk memory informs the RAMAC design 1951 introduction of magnetic tape media data storage machine 1951 Data processing systems integrate multiple forms of input and output 1953 Solid-state devices improve speed, size & reliability of memory systems 1953 Magnetic cores provide a fast, reliable solution for computer main memory 1956 Quadruplex recorders serve as professional video standard for 25 years 1956 First commercial hard disk drive shipped 1961 HDD competitors enter the market 1961 Flying heads improve HDD capacity & speed 1962 Thin-film memory commercially available 1962 Thin-film memory commercially available 1962 Bulk storage systems add low-cost capacity 1962 Disk packs offer portability & security 1971 Reusable semiconductor ROM introduced 1971 Floppy disk loads mainframe computer data 1991 Solid State Drive module demonstrated 1995 Consumer CD-R drive priced below $1000 2000 Prototype blue laser disc stores HD video 2000 USB Flash “sticks” displace disks for portable computer data storage 2006 Amazon announces remote access to low cost bulk storage 2013 Helium technology allows much more of your precious data to be stored cheaply in the “cloud”