I really enjoyed this article as a refresher on some concepts that I'm familiar with, but hadn't known all the specifics about.
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Internet- collection of networks. LAN & Wide-Area Networks. Based on protocol of ARPAnet (TCP/IP)
*IP: Internet Protocol. joins together network segments that constitute internet. Four numbers, each 0-255 stored as 4 bytes. Connected by routers. Info in packets.
*TCP: Transport Control Protocol. Divides msg into packets, labels each w/ destination IP & Sequence #, sends them out on network. Receiving comp acknowledges receipt & reassembles.
- guarantees error-free delivery, but not prompt.
TCP/IP Suite of Programs:
*Terminal Emulation: telnet
*File Transfer: FTP
*Email: SMTP (single message)
Scientific publishing on the internet:
*RFC's (request for comment)
*IETF (Internet Engineering Task Force
*Los Alamos E-print archives
HTML, HTTP, MIME, URLs
*MIME specifies data type.
Conventions:
*web sites
*home page
*buttons
*hierarchical organization
web is giant step to build DLs on...not just detour until real thing comes along
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