1. 1 www.koretide.com.cn Tongji University Rong Chen 3/1/2005 OS Research Trends and Elastos Overview

2. 2 www.koretide.com.cn Evolutions of Operating Systems DOS Windows 3.1 Windows 2000.NET Windows 2000 Longhorn

3. 3 www.koretide.com.cn On Demand Computing (Pan URL)  URL based binary executables  No software installation required  Incrementally download what is necessary Elastos Model (URL address code & data) computer datacode datacode Browser Model (URL address HTML data) computer datacode data code

4. 4 www.koretide.com.cn Internet Storage Hierarchy  Computer Architectures Stand-alone Computer Stand-alone Computer Internet Computer (Grids) Internet Computer (Grids)  Programming Paradigm Independent of Connection Technology Independent of Connection Technology Must be TCP/IP free Must be TCP/IP free Internet StorageHard DiskMemoryRegisters North Bridge, South Bridge… IDE, SCSI, PCI… TCP/IP, NETBIOS, HTTP… Stand-alone Computer Internet Computer

5. 5 www.koretide.com.cn Platform for Secure Executions Domain A Domain C Domain B  Programmable secure native execution environment  Customized by operation providers  Digital signatures and sandboxing

6. 6 www.koretide.com.cn Platform for Secure Executions (2)

7. 7 www.koretide.com.cn XML Based Graphics User Interface XML Based Graphics User Interface  Superset of HTML 4.01, extending tags include Button, Icon, etc.  Dynamically bind to user defined native executable modules  Bypassing scripting languages, such as JAVA scripts

8. 8 www.koretide.com.cn Platform for Device Plug and Play HomeOffice Public  True plug and play  Devices are self-describing  No awareness of device drivers

9. 9 www.koretide.com.cn  Terminal to server  Peer to peer Operation & Server Paradigm

10. 10 www.koretide.com.cn Pervasive & P2P Computing

11. 11 www.koretide.com.cn  Application development  Operating System  Programming Paradigm  Comparing with major players Technology Trends Stand-alone APPs WEB Services Desktop/Server (MS Windows) Grid Computing (Microsoft.Net) Language Sun Java & Microsoft.Net Elastos Comp. Library VM CAR API CAR Library Elastos OS Object-oriented Middleware Going in the same direction but with complementary technology

12. 12 www.koretide.com.cn CDMA2000WCDMATD-SCDMA BREWSymbianElastos Elastos + TD-SCDMA = 3G 3G Mobile Software Platforms