- Unique IP address (xxx.xxx.xxx.xxx)
- Client/Server
- Protocol (http - Hypertext Transfer Protocol)
- HTTP - hyper-text transfer protocol
- HTTPS - secure hyper-text transfer protocol
- SMTP - Outgoing (simple mail transer protocol)
- POP - Incoming (Post office protocol)
- FTP - file transfer protocol
- HTML - Hypertext Markup Language
- URL - Uniform Resource Locator
- Hello world