 |
1956_
2" professional videotape |
 |
|
|
|
|
|
_1959
Integrated circuit
|
 |
 |
1963_
Compact
audio cassette
|
|
|
|
 |
1965_
8-track audio cartridge
|
|
|
|
 |
1971_
3/4" videocassette
|
|
|
|
 |
1975_
1/2" Betamax® videocassette
|
|
|
|
 |
1976_
1/2" VHS
videocassette |
|
_1976
5-1/4" floppy disk
|
 |
 |
1978_
Laser
optical disk |
|
|
|
