• Web OS definition Web OS provides OS services to wide-area applications,
including mechanisms for resource discovery, a global namespace, remote process execution, resource management, authentication, and security
• History Web OS began at the University of California, Berkeley
in the Network of Workstations project. And now it became a very popular term with many websites providing these kind of service
Web OS versus tradition single PC OS
Web OS PC OS
Technology: AJAX +FLASH c /assembly Built on any other OS directly on hardware
Internet online on browser offline is ok
Application installed on server installed on local disk
SECURITY volatile safe
FILE SYSTEM wide areas file system ntfs,fat32,ext2,ext3
• How to use Web OS.
• register an account and login to Web OS web site You OS www.youos.com it is very similar to other OS we have used
Comparison of several popularComparison of several popularWeb OSWeb OS
• YouOS EyeOS
• Desktop2
Component of a Web OSComponent of a Web OS
• Resource Discovery: Smart Clients
• Process Control: resource manager• Wide Area File System: WebFS, NFS
• User Interface: http/xml/css/javascript, flash
• Security and Authentication:• 1Link Layer: SSL• 2Transfer of Rights
Other famous web service can be developed to Web OS
facebook platform , facebook open api, facebook application, fql and fbml .
• Google: Gmail -outlook, GDoc -resource manger,Pisca-acd see google api
• Microsoft windows live
• Advantages 1 occupies little hard disk space 2 occupy small CPU resources 3 can be obtained at any OS with web browser• Disadvantages that needs to be improved 1 easy to be hacked 2 can not be obtained offline 3 can not program on the local hardware so USB disk and CDROM can not be used. 4 more bandwidth is needed for multiple programs to run
simultaneously
• Prospect of Web OS and single PC os
Web OS will take more and more important role in the future
More and more applications will be web os based
single PC OS will not fade away microsoft windows and linux will still provide plenty of application .But the good thing is that customers will have more choices
