It is essential to learn the basics of networking. Since late 1950's, health institutions in the US use mainframes that are connected to terminals in financial offices. A computer exists whenever two computers connected and share the same data. A network can range in size from palmtop connected to a desktop using wireless or cable communication, to a worldwide multi user environment known as the internet.
The basic physical architecture of a local area network (LAN) is most essential in automation of healthcare information system allowing communication and sharing of resources across different departments or sections of a healthcare institution. a wider set up known as wide area network (WAN) is also important with increasing emergence of electronic health record systems. WAN has computers connected farther apart forming an interconnection of LANs, alson known as enterprise networks.
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