What is the difference between communication and communication system?

Answer 1

communication system is what the computer uses to make digital signals to communicate with while as communiction is how the computer talks to each other

Communication is simply exchanging information.

A few examples are talking, various body movements, smoke signals, the written word, pictures (such as made by ancient cave dwellers), Braille, talking African drums, etc. etc.

A communication system is the method by which information exchange is achieved. For example, a telephone system, a computer network, a television network, a series of fire beacons on hilltops.