Networks


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Goals

  • Be familiar with common network architectures in the hospital environment
  • Understand the advantages and disadvantages of wired versus wireless networks
  • Distinguish markup languages from text formatting

Topics

protocol , network , bandwidth , local area network (LAN), network interface card (NIC), ethernet , network hub , router , gateway , switch , fiberoptic cable , wireless , client-server architecture , network operating system , internet protocol (IP), port , file server , application server , print server , middleware , "N-tier" architecture , component software , cluster , thin client , wide area network (WAN), telecommunications technologies: plain old telephone service (POTS), modem , cable modem , integrated services digital networks (ISDN), digital subscriber line (DSL), T1 , T3 , internet , internet service provider (ISP), intranet , extranet , virtual private network (VPN), World Wide Web , Web browser , applet , plug-in , domain name , uniform resource locator (URL), file transfer protocol (FTP), telnet , SSH (secure shell), hypertext , http (hypertext transfer protocol), markup language , tags , HTML (hypertext markup language), XML (extensible markup language), portable document format (PDF)


Read about

A network refers to two or more computers and/or devices that can communicate (send/receive data) via cables (wired, e.g. fiberoptic cable) or electromagnetic waves (wireless) through network interface cards. A network that operates in a small geographic range is also referred to as a local area network, with greater distances covered by a wide area network.

Hospital and laboratory information systems (LIS) function in networked environments. There are a variety of client-server architectures including mainframe and thick or thin client . Servers may be multiple and be specialized as a file server , application server , print server, among others. Many laboratories also employ middleware , which adds another layer in-between client and server to create a three-tier architecture (see also "N-tier" architecture).

Speed of connection: plain old telephone service (POTS), modem , cable modem , integrated services digital networks (ISDN), digital subscriber line (DSL), T1 , T3

Common communication protocols: (rules to follow when sending information) protocol , internet protocol (IP), http (hypertext transfer protocol), file transfer protocol (FTP), ethernet

Secured networks: intranet , extranet , virtual private network (VPN)

Internet: World Wide Web , Web browser , applet , plug-in , domain name , uniform resource locator (URL), file transfer protocol (FTP), http (hypertext transfer protocol), HTML (hypertext markup language), internet service provider (ISP)

Activities

#1: Drawing

Draw and label a diagram of different network topologies
  1. Star (central hub)
  2. Token ring (sequential connections)
  3. Linear bus (central backbone)
  4. Tree (branched)

Online Resources



Questions



Advanced courses


Expert corner



Networks | Goals | Topics | Read about | Activities | Online Resources | Questions | Advanced courses | Expert corner This page was last modified by - JYKim_Path JYKim_Path on Sep 17, 2009 10:36 am.