Information & Communication Theory

Wikipedia - Outline of Communication [link]

'Communication - purposeful activity of exchanging information and meaning across space and time using various technical or natural means, whichever is available or preferred. Communication requires a sender, a message, a medium and a recipient, although the receiver does not have to be present or aware of the sender's intent to communicate at the time of communication; thus communication can occur across vast distances in time and space.'

Oxford Dictionary [link]

1. [mass noun] 'The imparting or exchanging of information by speaking, writing, or using some other medium.'

1.2 'The successful conveying or sharing of ideas and feelings.'

2 (communications) 'Means of sending or receiving information, such as telephone lines or computers.'