Data storage device

From PUBLIC DOMAIN PROJECT
Revision as of 00:16, 9 June 2012 by Fuchur (talk | contribs) (U.S. Everlasting cylinders)

Jump to: navigation, search

A data storage device is a device for recording (storing) information (data). Recording can be done using virtually any form of energy, spanning from manual muscle power in handwriting, to acoustic vibrations in phonographic recording, to electromagnetic energy modulating magnetic tape and optical discs.


Media types

Phonograph cylinders

U.S. Everlasting cylinders

Image
Us-everlasting-records.jpg
Label U.S. Everlasting Records
Manufactor U.S. Phonograph Company
Storage medium Phonograph cylinder
Material Celluloid
Time duration 2-minute or 4-minute
Recording format 2-minute: 2-inch, 100 tpi; 4-minute: 2-inch, 200 tpi
Rotation speed 150-160 rpm
Launch 1908
Production stop 1912
Additional info Indestructible cylinder with superior sound quality
Description CYLINDERS
Media archives
Media pool