TCP/IP is an acronym referring to the individual protocols
used to communicate over the network: Transmission Control
Protocol (TCP) and Internet Protocol (IP).
IP packets are the electronic packages of data that the various
resources on the network use to communicate. Any device that
can send and receive an IP packet on the network is considered
a host. Computers and printers are usually hosts.
The IP address contains information that identifies the network
segment and the specific host number.