1. IS 247 Introduction to Web Application Development Tim Wu

2. Chapter 2 Web Browsers –Browser: A client program that display the content of web page by sending request to Web Server –Browser Cache: A temporary space that store visited web pages –Plug-Ins: Written by third party but appear to be part of the browser Portable Document Format (PDF) Micromedia Shockwave Apple Quicktime

3. Chapter 2 Web Browsers Security: –Encryption: the process (Known as cipher ) of converting data into hard to understand format –Decryption: the process (Known as decipher ) of converting data into original format –Secure Sockets Layer (SSL) A communication protocol securely pass data between web browser and web server Use public-and-private key encryption system from RSA data system

4. Chapter 3 E-mail Tools Protocols: (Client base e-mail) –Simple Mail Transport Protocol (SMTP port 25) Sending and receiving e-mail over the Internet (outgoing) –Post Office Protocol Ver. 3 (POP3 port 110) or Internet Message Access Protocol (IMAP port 143) Deliver mail to client mail box after SMTP receives mail (incoming) Web-Base E-Mail

5. Chapter 4 & 5 Instant Messaging – Text-only chatting – Bulletin Board System (BBS) / Internet Relay Chat (IRC) – Instant Messaging (IM or IMing) More sound, image function Lists and Newsgroup – LISTSERV and majordomo server – Newsgroup server (Usenet)