Lecture#01x - Yimg

parisfawnΤεχνίτη Νοημοσύνη και Ρομποτική

17 Νοε 2013 (πριν από 3 χρόνια και 9 μήνες)

107 εμφανίσεις

Mobile Computing

Lecture#01 Mobile Horizon

Leading Mobile Phone Technologies


iOS


Android


Blackberry


Symbian


Windows Phone


J2ME

iOS
/
iPhone

OS


iOS

/
iPhone

OS operating system for
iPhone


Extended

to support
other

Apple’s

devices

(
iPod
,
iPad
,
Apple TV)


Owned

by Apple


No licence for
third
-
party hardware


More
than

500,000
iOS

apps

on
iStore

(
Oct

2011)


More
than

10 billion
downloads


59% mobile web
consumption

(May 2010)


Multitouch
,
Accelerometer
,
Swipe
, Tab,
Pinch

etc


Android


Developed

by OHA (a consortium of 84
companies
)
lead

by Google


Most code
released

under

free software licence


Best
selling

smart phone
platform

Q2 2011


Over 500,000
Apps

at

Android

App

Store


Apps

can

also

be

downloaded

from

third
-
party
websites


Sqlite
, Java, Linux, C++,
Multitouch
, Bluetooth,
Multitasking



Symbian



Symbian

Platform =
Symbian

OS + Nokia Series 60


Latest version = Symbian
-
3 (Released in end 2010)


From May 2011
Symbian

is no longer open source


Devices shipped to sellers with
Symbian

OS are
estimated to 385Millions


43.5 % of world wide smart phone sales Q2 2010 (Nokia
N8)


Symbian


On February 11, 2011, Nokia announced that it would
migrate away from
Symbian

to
Windows Phone 7


Nokia’s agreement with Accenture


Accenture will provide
Symbian

based software
development/support services to Nokia through 2016

Blackberry


Developed by (Research In Motion) RIM


Multitasking,
trackwheel
, trackball,


Best known for native support on corporate emails


Big player in US market


Updates to the operating system may be automatically
available from wireless carriers


Native support for corporate email


Qwerty keyboard,
bluetooth
, high speed wireless data




Windows Phone


Owned by Microsoft


Partnership with Nokia


UI, Web browser, Email, Multimedia, Game, Office suite,
Sync


Search Engine, Voice Recognition



J2ME


Developed by Sun


Restricted access to system


Compliance with JRE1.3


Relatively old technology not keeping pace with latest
technologies



Top3 Mobile OSs

Top 3 Mobile OS Market Share

2Q Worldwide Smartphone Sales

SRC URL: http://www.engadget.com/2011/08/11/nokia
-
still
-
ahead
-
of
-
apple
-
in
-
smartphone
-
sales
-
according
-
to
-
gar/

AT&T Smartphone Sales

http://www.engadget.com/photos/t
-
mobile
-
keynote
-
at
-
mobilize
-
2011/#4480159

Mobile Phone Platforms


Fragmentation


Variety of software/hardware


Proprietary Software Stacks


Software stacks owned by companies, not scalable


Phone Network Operators


Money oriented services, restrictions on data, strict
control of services


Scarcity of Resources


Typical less resources on devices


Android Environment


Limited Resources


Portable Applications


Reusable Applications


Equal Applications


Access to Core