This study analyzes longitudinal trends in Korean use of (1) domestic mail, (2) international mail, (3) domestic telephone calls, (4) international outgoing telephone calls, (5) telex, (6) mobile telephones, (7) televisions and (8) the internet to examine the media’s displacement or supplementary effects. The results show that international mail, domestic telephone and telex can be best describ...

The social history of the mobile telephone involves both the history of technological development and an account of changing social and political frameworks into which the new technological developments become integrated. The technological innovations of mobile telephony were established from the 1940s, but it was not until the 1990s that adoption took off. It has been claimed that the mobile t...