Log in
|
Sign-up
|
Search
Username:
Password:
Forgot Your Password?
E-mail:
Wander
This is an error message: JavaScript needs to be enabled.
1899 Valdemar Poulsen
−
15 September,
2007
Valdemar Poulson uses magnetized steel tape as a recording medium. This step starts mankind down to the road to mass data storage on disk.
Posted on
September 17, 2007.
and has been viewed 120 times.
Distance Education
Life
Streams
World
Previous story
|
Next story