Digital Communication Methods
作者：Thomas Moore
1. HTTP
1.1. Services
1.2. Secure
2. Video Conference
2.1. LAN
2.2. WAN
3. File Sharing
3.1. Benefits
3.2. Bandwidth
3.3. Internet
4. Voice Over IP (VoIP)
5. Network Gaming
6. Streaming Media
7. FTP
8. Email
8.1. POP3 (110)
8.2. SMTP (25)
9. Email Security
9.1. SPAM
9.2. Privacy
9.3. Anti-Virus
10. Usenets / Newsgroups
11. Chat Rooms
12. Instant messaging
