13. 18
2.4 Hub
Hub
“ Port)”
Hub
Segment 1
Segment Hub
Hub
Hub
Segment 2
Segment 2
Hub
(Bridge)
Layer 2 OSI Mode
Segment 2
Segment Segment
Data Link Protocol
Network Protocol Token
Ring LAN (LAN Topology
Token Ring) 2 Segment Ethernet LAN
(LAN Topology Ethernet) 2
Segment Bridge
Hub Repeater
14. 19
Segment
Segment
Segment Segment
Segment
2.5
Bridge
(Router)
Layer 3 OSI Model
2
LAN
LAN WAN LAN WAN
Network Protocol
Data Link Protocol Ethernet
LAN Token LAN Router
Bridge
19. 24
3
1. Android Open Source Project
(AOSP)
“ ”
2. Open Handset Mobile
(OHM)
Open Handset
Alliances (OHA)
Google Mobile Service (GMS)
GMS
3.
Cooking Customize
Unlock
29. 34
Programming Java
Sun
Microsystems)
Oak
1995
platform independent)JDK 1.0 1996JDK
Java 2
2.4.2.2
Java Compiler
Java Source Code text file
java
Compile Source Code
Binary File Byte
Code ( class)
Server
Web Browser Server
Web Browser
Java
Fortran, Cobol, C, Pascal Basic
30. 35
Object-Oriented
Programming OOP
C++ Java C++
Java Web Page Web
Server Web Page …
Java Applet Server
Applet
Web Browser
Binary File (Byte Code)
Java (Java runtime) Web
Browser Java
Server Web Browser Web Page
Applet
Browser
JAVA Applet
JAVA
Java
31. 36
Java Web Browser Web
Browser Java
Java Class Loader
Java
NetWork Internet (E-commerce)
Java 3
Application Server
Application Server
Java Application
Server client request
Application Server Java Web
Application Java Application Client
)
Application Java
Application Client Internet
Browser Application Server
32. 37
Electronic Project
update E-Project Application Server
compiler
: Java Application Server
Java Application Server
Java Application Server
Java Virtual Machine (JVM)
Java PC Java
Application Server
Web Application , Java Application Client
Application Server
Java Application Server
33. 38
Java Application Server
WebLogic BEA System
WebSphere IBM
Oracle 9i Application Oracle
Server Sun Microsystems
Sun ONE Macromedia
Jrun Tmax Soft
JEUS Jboss
Jboss Application Borland
Server
Enterprise Server,
AppServer Edition
Java Application Server
35. 40
Java Servlet Java Servlet
Servlet Container Servlet Container
Servlet container
Tomcat Server
download
Java Server Page Java Servlet
html Java
Server Page Java Servlet
Web Server
Enterprise Java Bean ( EJB )
Java
component server
EJB
server EJB server
server EJB
server
client
JSP/Servlet Java Application
EJB Thin-client
Application client client