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Introduction to Medicine and the Internet

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    • 1. Medicine and the Internet Don Nelson and Gordon Baustian
    • 2. Overview
      • What is the Internet?
      • How did it come about?
      • What can it do for physicians?
      • How can I get connected?
      • Prospects for the future
    • 3. What is the Internet?
      • A loosely organized, but effective, network of computers and smaller networks
      • A set of rules (protocols) for computers to make connections to other computers and to request and transfer information
      http: ftp: gopher: udp: ppp: pop: Telnet: TCP/IP
    • 4. How we got the Internet
      • Department of Defense support for computing research
      • (Defense) Advanced Research Projects Agency: ARPANET (1969)
      • Share expensive experimental computers ($$$) among researchers
    • 5. How we got the Internet
      • The Cold War
      • Need for “disaster-proof”network
      • Decentralized
      • Reconfigure itself
      • Work around outages
    • 6. Terminology
      • Hosts / Servers
        • Systems that supply information
        • More-or-less permanent connection to the Net
      • Clients
        • Systems that request information
        • May be intermittently connected
      • One system may play both roles
    • 7. How it grew!!
      • The PC revolution -- Cheap computers!
      • Millions of users
      • Hypertext
      • The World Wide Web (WWW)
    • 8. Hypertext
      • Ability to embed references to other documents
      • References “Links” are active
      • Move from one item to another by selecting a link
    • 9. Hypertext
      • This is ordinary text from a Web Page
      • This is hypertext
    • 10. Hypertext
      • HTML Hypertext Markup Language
        • Create documents with links to other documents
      • HTTP Hypertext Transfer Protocol
        • Send HTML documents from one computer to another
      • One resource can “contain” others anywhere
      • Hence “World Wide Web”
    • 11. What is a URL?
      • Uniform Resource Locator
      • An address to any item on the Internet
      http://www.microsoft.com/index.htm Name of host computer The item requested Protocol to use
    • 12. What do I need?
      • Computer
      • Modem or other connection
      • Software -- Browser
        • Netscape Navigator
        • Microsoft Internet Explorer
      • Internet provider
        • Compuserve, America Online
        • Physicians Online
        • Local provider: CR Library, etc.
    • 13. What Lies Ahead?
      • Patient education on line
      • Secure transactions
      • Access to medical records?
      • Patients schedule own appointments?
    • 14. Internet Protocols World Wide Web == HTTP protocol User client -- browser Opera, Mozilla, Netscape, Internet Explorer WWW is only a small part of Internet !!! AOL and MSN are not Internet at all !!! Internet AOL MSN gateway gateway Internet Services Providers give you full Internet archive.salon.com/tech/feature/2001/06/26/locking_up_the_web/index3.html
    • 15. Internet Protocols World Wide Web == HTTP protocol User client -- browser Opera, Mozilla, Netscape, Internet Explorer WWW is only a small part of Internet !!! AOL and MSN are not Internet at all !!! Internet AOL MSN gateway gateway Internet Services Providers give you full Internet archive.salon.com/tech/feature/2001/06/26/locking_up_the_web/index3.html
    • 16. Internet Protocols Web Browsers web standards are important for compatibility longevity of websites, and future development Opera and Mozilla are W3C compliant Internet Explorer violates the standards (version 6 may comply) has many security holes Netscape 4 is incapable to view modern websites Netscape 7 is a commercialized version of Mozilla 1.0 Replace Netscape 4 with Opera or Mozilla! MSN
    • 17. Internet Protocols World Wide Web == HTTP protocol User client -- browser Opera, Mozilla, Netscape, Internet Explorer WWW is only a small part of Internet !!! AOL and MSN are not Internet at all !!! Internet AOL MSN gateway gateway Internet Services Providers give you full Internet archive.salon.com/tech/feature/2001/06/26/locking_up_the_web/index3.html
    • 18. Internet Protocols Web Browsers web standards are important for compatibility longevity of websites, and future development Opera and Mozilla are W3C compliant Internet Explorer violates the standards (version 6 may comply) has many security holes Netscape 4 is incapable to view modern websites Netscape 7 is a commercialized version of Mozilla 1.0 Replace Netscape 4 with Opera or Mozilla! MSN
    • 19. Internet Connectivity A decent ISP must give a client: o SMTP address to send email o POP3 address to access the mailbox o NNTP address to get Newsgroups Additionally: o Space to host website at ISP’s IP address o FTP access to update website Optionally: o Fixed IP address for hosting own website
    • 20. Internet 2
      • Consortium of 206 universities along with industry and the government designing a more advanced internet
      • Will allow for revolutionary internet applications
      • Will not replace the current Internet
      • Federal Government also developing the Next Generation Internet (NGI)