6. File Operations
Access Permissions

11. Mainframe Architecture
3270 Dumb Terminals
Mainframe

12. Mainframe Architecture
3270 Terminals
PCs
Mainframe

14. Peer to Peer Architecture
PCs

19. Client/Server

21. Client/Server

22. Client /Server Architecture
PCs
Middleware
Server

23. Web Client/Server Architecture
Web Browser
INTERNET
INTRANET
HTTP
Server

24. Multi-Tier Client/Server Architecture
Web Browser
INTERNET
INTRANET
HTTP
Server
Database
Server

25. Secure Transactions Client Web Browser INTERNET INTRANET SSL HTTPS
Server
Database
Server