Transcript WEB OPERATING SYSTEM_Xiao_Han

WEB OPERATING
SYSTEM
BY XIAO HAN
[email protected]
• 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 popular
Web OS
• YouOS
•
EyeOS
Desktop2
Component 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
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