The Telephone: It is a Speech handling Media, not a data Network. Well is it ?

1876

1960

Flexowriter 10 Byte/s

Teletype 30 Byte/s

1971 The first Modem

at Stanford 120 Byte/s

The first commercial Modem 120 Byte/s

The Flexowriter interconnect made a standard character-set necessary: ASCII

ASCII + RS 232