Welcome to Systems Development PAL Session 3

1
Welcome to Systems Development PAL
Session 3
2
Session Overview

• The Assignment
• Protocols
• Web site creation continued
• Lists
• Horizontal Lines
• Background Colours
• Pictures

3
Protocols

• A standard procedure for regulating data
  transmission between computers
• TCP/IP
• TCP - Transmission Control Protocol the
  underlying communication between computers and
  networks
• IP - Internet Protocol A computers unique ID
• HTTPHyperText Transfer Protocol
• Fundamental communication protocol for the
  Internet
• DNS
• Domain Name Service
• Used to map URL onto IP address
• URL
• Uniform Resource Locator
• Mapped onto an IP
• Designed so you dont have to remember IP
  addresses
• FTP
• File Transfer Protocol
• Allows the electronic transfer of files between
  two computers (e.g. PCs and Unix)
• SSL
• Secure Socket Layer
• Used for transmitting private documents by
  encryption

4
Protocols

• TELNET
• Allows internet users to log on to a remote
  computer and enter commands
• SMTP
• Simple Mail Transfer Protocol
• Used for moving email between Mail Servers
• POP
• Post Office Protocol
• Used for moving email between client and server
• IMAP
• Internet Message Access Protocol
• USENET
• A global threaded bulletin board system
• NNTP
• Network News Transfer Protocol
• Used for transmission on USENET
• MIME
• Multipurpose Internet Mail Extensions
• Used to transmit documents other than simple HTML
  (e.g. Movies)
• Plug-ins aid MIME

5
HTML Lists

• 3 main types
• Bulleted using the ltulgt and ltligt tags
• Ordered using the ltolgt and ltligt tags
• Definition using the ltdlgt ltdtgt and ltddgt tags

6

• lthtmlgt
• ltheadgt
• lttitlegt PAL session 3 lt/titlegt
• lt/headgt
• ltbody bgcolor"FFFFC"gt
• lth1 aligncentergt PAL Session 3 lt/h1gt
• lth2gtCreate this webpage using notepadlt/h2gt
• ltpgtPlease note the ltcodegtltfontgtlt/codegt tag
  is ltfont colorredgtdepricatedlt/fontgtlt/pgt
• lthrgt
• ltpgtThis is my bulleted listlt/pgt
• ltulgt
• ltligtBullet 1 lt/ligt
• ltligtBullet 2 lt/ligt
• ltligtBullet 3 lt/ligt
• lt/ulgt
• lthrgt

7
Summary

• Protocols are a standard procedure for regulating
  data transmission between computers
• Use lthrgt to create a horizontal line
• Use ltbody bgcolorFFFFFCgt to change the
  background colour
• Use ltulgt ltligt for bulleted lists
• Use ltolgt ltligt for ordered lists
• Use ltdlgt ltdtgt and ltddgt for definition lists
• Use ltimg srchttp//www......gt to insert an
  image (usually GIF or JPEG)
• Use ltimg alt.gt to create a tooltip style
  message
• ltfontgt is now a deprecated tag