1. It’s less about being a 'realOS'and more of a 'humaninterface’

2. Introduction
Different web OS
Difference withPC OS
HowIt Works
Historyof development
Architecture
Security&Authentication
Applications
bibliography
Advantages & Shortcomings
Conclusion
components

3.  Web Operating System: “A software platform that interacts with the user
through a web browser and does not depend on any particular local operating
system.”
Your own sub headline
 Primary Interface = Browser.
 Browser will conduct OS “functions”
 File Access
 Init Preferences
 Not just a service but a platform.
 Open Source-Open API
 Truly “Write Once – Run Anywhere”.

4. WebOS gained popularity in 1999, WebOS Inc., was founded
by Shervin Pishevar and Drew Morris
WebOS acquired WebOS.org, created by a young Swedish
programmer, Fredrik Malmer, created the first online desktop
environment
WebOS was covered by many media outlets such as the Wall
Street Journal, financial Times, LA Times, Power lunch on
CNBC, Fox News and CNN and helped spread the WebOS
meme further
1998
Till Date
1999
The first webOS and web-based desktop environment was
invented by Sandro Pasquali, year – 1998

5. PC - OS
c /assembly
WEB - OS
AJAX +FLASH1 1
Any other OS Different hardware
Online on browser Offline is OK
Installed on server Installed on local disk
Volatile Safe
ntfs,fat32,ext2,ext3Wide areas file system
2
3
6
5
4
3
4
5
6
2
TECHNOLOGY
BUILT ON
INTERNET
APPLICATION
SECURITY
FILE SYSTEM

6. Passive Web Components
Using resource manager is responsible for
jobs requests from remote sites
Active Web Components
Attribute schemes
Based on data flow networksResource Representation
Interaction
capture real world representations
(concepts) e.g. files, programs, source-code
3
representations for non-executable resources,
passive WebComs have an attribute scheme
2
1
Wide Area File System WebFS(A global cache coherent file system), NFS
4
representations for executable resources active
WebComs are passive WebComs with an
action
5 Process Control
6

7. Browser &
Browser
Server
System
Manager
Enyo
Core
Application
Platform
Portability
Layer
System
Services
Build &
Development
Enviornments

8. A Web OS behaves like a desktop OS
When a person chooses to run a certain application, his
or her computer sends a request to the system's control
node -- a special server that acts as a system
administrator
The control node interprets the request and connects
the user's client to the appropriate application server or
database
Web operating systems can also make it easier to share
data between a Mac computer and a PC
2
1
3
4

9. 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

10. Security & Authentication
SECURITY
Step 1: users transfer some
portion of their access rights to
webOS server when attempting
to access a remote resource
Step 2: WebOS servers
communicate using SSL
Step 3: The remote server
checks if the proper credentials
are held in local ACL’s
1
Web Security Model

11. AUTHENTICATION
Types of authentication: PIN / Password
Max number of failed password attempts
Auto lock: yes
Remote wipe
2
Security & Authentication continue…

12. ICLOUD
Glide OS
3.0
G.HO.ST
JOLI
CLOUD
EYEOS

13.  Icloud: It offers up to 50GB of
online storage, easy sharing,
and an application
development feature
Features:
 Online file system for storing all
file types
 Productivity applications –
Write, Calendar, Mail
 Photo organizer with sharing
capability, media player – iPlay,
movie player, and even radio
2
ICloud1

14. 2
Glide OS2  Glide OS 3.0 is an ad-free
cloud computing solution,
accessible from a computer
and a mobile phone
Features
 10GB of virtual disk space
 Office tools – word processor,
presentation creator,
calculator, calendar
 Photo editor
 Website creator

15.  G.HO.ST (2006)stands for Global
hosted operating system. The
G.ho.st Virtual Computer includes
almost everything you would have
in a physical computer
Features
 15GB professionally hosted and
backed-up disk space
 Sharing and collaboration
 Office suite –edit documents,
spreadsheets and presentations
using G.ho.st integrations with
Zoho
2
G.HO.ST3

16.  Jolicloud is a Web OS that was
developed for netbooks, so it is
very Net focused
 It supports all connectivity
hardware, like 3G modems, Wi-
Fi, and Bluetooth
 Jolicloud is also great for social
media users, because it makes
accessing services like Facebook
and Twitter really easy
 It also has Skype, Google Reader,
GMail, Meebo, VLC, and what
not
2
JoliCloud4

17.  eyeOS is the Open Source Cloud
Computing’s Web Desktop
 This operating system can be
used by individuals as well as
organizations. You can either
create an account on eyeOS server
or download it and run it from
your own server
 It includes a Desktop environment
with 67 applications and system
utilities, including Word
Processor, Address Book, PDF
reader, and tons of applications
developed by the community
2
Eye OS5

18. Usage Of Web client OS
23.25%7.70%5.12%1.32%1.04%0.72%
3
5
1 2
4
6
7
58.64%
XPMAC Win 7 Vistaiphone Linux other
Source: Median values from Usage share of operating systems (www.jegsworks.com)
…As per 2010 statistics

19.  There are two main technologies that are thoroughly
utilized when it comes to the creation of a Web OS:
Adobe Flash and Asynchronous JavaScript and XML
(AJAX)
AJAX - Highly touted by Google (Calendar & Gmail
services)
Flash – More than 98% of all machines connected to
internet have a flash player installed
 The widespread familiarity with these technologies is
one of the primary reasons why there are so many
implementations of them

20. occupies little hard disk space
more bandwidth is needed for multiple programs to run
simultaneously
can be obtained at any OS with web browser
easy to be hacked
occupy small CPU resources
can not be obtained offline
can not program on the local hardware so USB disk and
CDROM can not be used.
Advantages
1
2
3
1
2
3
4
Short Comings

21. Extending server functionality onto client machines allows for more flexible
implementation of name resolution, load balancing, and fault tolerance
Google: Gmail -outlook, Google resource manger may also be developed to
Web OS
Web OS will take more and more important role in the future
More and more applications will be web OS based
Simplifying the implementation of a number of wide area applications
Facebook platform , Facebook open api, Facebook application maybe
developed to Web OS
✓
✓
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22. http://www.xmlconsortium.org
http://en.wikipedia.org/wiki/Web_operat
ing_system
http://en.wikipedia.org/wiki/WebOS
http://paradis.ift.ulaval.ca
http://www.engineersgarage.com
http://www.kottke.org
http://computer.howstuffworks.com
https://developer.palm.com

23. THANK YOU!
Ayan Choudhury
Jayasree Sengupta
Sucharita Chatterjee
Tanusree Chatterjee
Trina Pramanik

24. Questions?