The social information theory, focuses on non-verbal communication and uses a medium in order to develop an interpersonal communication. On this theory it has the to be an interrelated to computer mediated theory since there must a medium needed in order to communicate.
Example is you badly need to interview of a person, since he’s busy and sometimes he was been always out oh he’s house. In order to communicate with him, you send your letter to his email also you chat him and since it was not face-to-face you expect a delayed response an because he qas a busy person.
It also adapts the absence of the face-to-face conversation.Since social information theory is an online communication, the disadvantage of it is delayed response and has a prompt response.
Communication Theory 