define IT & ICT and the computer

another significant lesson in comp sci is IT and ICT
IT is information technology for short and is the application of computer use while ICT is for information and communication technology that communicates data through telecommunications. also we were taught of the concept of the computer which is a device that carries out commands from the software. today, it is now called computer because before, you literally can't mention for several times in a conversation "general purpose stored-program electronic digital computer"which is the meaning for computer because that would
be crazy.anyway, today, there are many examples of ICT and IT such as cellphones etc.

source: en.wikipedia.org/wiki/personal computer