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Medicine and the Internet Don Nelson and Gordon Baustian
Overview <ul><li>What is the Internet? </li></ul><ul><li>How did it come about? </li></ul><ul><li>What can it do for physi...
What is the Internet? <ul><li>A loosely organized, but effective, network of computers and smaller networks </li></ul><ul>...
How we got the Internet <ul><li>Department of Defense support for computing research </li></ul><ul><li>(Defense) Advanced ...
How we got the Internet <ul><li>The Cold War </li></ul><ul><li>Need for “disaster-proof”network </li></ul><ul><li>Decentra...
Terminology <ul><li>Hosts / Servers </li></ul><ul><ul><li>Systems that supply information </li></ul></ul><ul><ul><li>More-...
How it grew!! <ul><li>The PC revolution -- Cheap computers! </li></ul><ul><li>Millions of users </li></ul><ul><li>Hypertex...
Hypertext <ul><li>Ability to embed references to other documents </li></ul><ul><li>References “Links” are active </li></ul...
Hypertext <ul><li>This is ordinary text from a Web Page </li></ul><ul><li>This is  hypertext </li></ul>
Hypertext <ul><li>HTML Hypertext Markup Language </li></ul><ul><ul><li>Create documents with links to other documents </li...
What is a URL? <ul><li>Uniform Resource Locator </li></ul><ul><li>An address to any item on the Internet </li></ul>http://...
What do I need? <ul><li>Computer </li></ul><ul><li>Modem or other connection </li></ul><ul><li>Software -- Browser </li></...
What Lies Ahead? <ul><li>Patient education on line </li></ul><ul><li>Secure transactions </li></ul><ul><li>Access to medic...
Internet Protocols World Wide Web == HTTP protocol User client --  browser   Opera, Mozilla, Netscape, Internet Explorer W...
Internet Protocols World Wide Web == HTTP protocol User client --  browser   Opera, Mozilla, Netscape, Internet Explorer W...
Internet Protocols Web Browsers web standards are important for compatibility longevity of websites, and future developmen...
Internet Protocols World Wide Web == HTTP protocol User client --  browser   Opera, Mozilla, Netscape, Internet Explorer W...
Internet Protocols Web Browsers web standards are important for compatibility longevity of websites, and future developmen...
Internet Connectivity A decent ISP must give a client: o  SMTP address to send email o  POP3 address to access the mailbox...
Internet 2 <ul><li>Consortium of 206 universities along with industry and the government designing a more advanced interne...
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Introduction to Medicine and the Internet

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  • Transcript of "Introduction to Medicine and the Internet"

    1. 1. Medicine and the Internet Don Nelson and Gordon Baustian
    2. 2. Overview <ul><li>What is the Internet? </li></ul><ul><li>How did it come about? </li></ul><ul><li>What can it do for physicians? </li></ul><ul><li>How can I get connected? </li></ul><ul><li>Prospects for the future </li></ul>
    3. 3. What is the Internet? <ul><li>A loosely organized, but effective, network of computers and smaller networks </li></ul><ul><li>A set of rules (protocols) for computers to make connections to other computers and to request and transfer information </li></ul>http: ftp: gopher: udp: ppp: pop: Telnet: TCP/IP
    4. 4. How we got the Internet <ul><li>Department of Defense support for computing research </li></ul><ul><li>(Defense) Advanced Research Projects Agency: ARPANET (1969) </li></ul><ul><li>Share expensive experimental computers ($$$) among researchers </li></ul>
    5. 5. How we got the Internet <ul><li>The Cold War </li></ul><ul><li>Need for “disaster-proof”network </li></ul><ul><li>Decentralized </li></ul><ul><li>Reconfigure itself </li></ul><ul><li>Work around outages </li></ul>
    6. 6. Terminology <ul><li>Hosts / Servers </li></ul><ul><ul><li>Systems that supply information </li></ul></ul><ul><ul><li>More-or-less permanent connection to the Net </li></ul></ul><ul><li>Clients </li></ul><ul><ul><li>Systems that request information </li></ul></ul><ul><ul><li>May be intermittently connected </li></ul></ul><ul><li>One system may play both roles </li></ul>
    7. 7. How it grew!! <ul><li>The PC revolution -- Cheap computers! </li></ul><ul><li>Millions of users </li></ul><ul><li>Hypertext </li></ul><ul><li>The World Wide Web (WWW) </li></ul>
    8. 8. Hypertext <ul><li>Ability to embed references to other documents </li></ul><ul><li>References “Links” are active </li></ul><ul><li>Move from one item to another by selecting a link </li></ul>
    9. 9. Hypertext <ul><li>This is ordinary text from a Web Page </li></ul><ul><li>This is hypertext </li></ul>
    10. 10. Hypertext <ul><li>HTML Hypertext Markup Language </li></ul><ul><ul><li>Create documents with links to other documents </li></ul></ul><ul><li>HTTP Hypertext Transfer Protocol </li></ul><ul><ul><li>Send HTML documents from one computer to another </li></ul></ul><ul><li>One resource can “contain” others anywhere </li></ul><ul><li>Hence “World Wide Web” </li></ul>
    11. 11. What is a URL? <ul><li>Uniform Resource Locator </li></ul><ul><li>An address to any item on the Internet </li></ul>http://www.microsoft.com/index.htm Name of host computer The item requested Protocol to use
    12. 12. What do I need? <ul><li>Computer </li></ul><ul><li>Modem or other connection </li></ul><ul><li>Software -- Browser </li></ul><ul><ul><li>Netscape Navigator </li></ul></ul><ul><ul><li>Microsoft Internet Explorer </li></ul></ul><ul><li>Internet provider </li></ul><ul><ul><li>Compuserve, America Online </li></ul></ul><ul><ul><li>Physicians Online </li></ul></ul><ul><ul><li>Local provider: CR Library, etc. </li></ul></ul>
    13. 13. What Lies Ahead? <ul><li>Patient education on line </li></ul><ul><li>Secure transactions </li></ul><ul><li>Access to medical records? </li></ul><ul><li>Patients schedule own appointments? </li></ul>
    14. 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. 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. 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. 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. 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. 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. 20. Internet 2 <ul><li>Consortium of 206 universities along with industry and the government designing a more advanced internet </li></ul><ul><li>Will allow for revolutionary internet applications </li></ul><ul><li>Will not replace the current Internet </li></ul><ul><li>Federal Government also developing the Next Generation Internet (NGI) </li></ul>
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