This has been a thought provoking question and one to which I cannot yet find a definitive answer. Up to 1994 the term IT was used in UK schools meaning Information Technology. The term ICT appears to have been first applied by Lord Stevenson and is mentioned in the Dearing report at that time. The concept of including the 'C' for communications was at the time that internet and email was being intorduced into schools.
However if the term is taken literally and split up it could imply more than that which many would interpret as ICT. What do you mean when you talk about information, communications, and technology? What is implied in current technological development and what would it have meant in the past?
Here are some views: