Android is an open-source, Linux-based operating system developed by Google and the Open Handset Alliance for mobile devices. It was created in 2004 by Andy Rubin, Rich Miner, Nick Sears, and Chris White. Android uses a modified Linux kernel, middleware, libraries and APIs written in C and application software running on an application framework which includes Java-compatible libraries. Some key features of Android include multi-touch support, external storage, Bluetooth, messaging and web browsing capabilities. The top Android phones include models from Samsung, HTC, Motorola and T-Mobile that offer fast performance and multimedia features. Advantages of Android phones are multitasking, notifications and a large selection of applications, while disadvantages include
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Android
1.
2. What is ANDROID?
It is a Linux-based operating system for mobile
devices such as smart phones and tablet
computers, developed by Google in conjunction
with the Open Handset Alliance.
3. People Behind...
Palo Alto, California, United States in October
2003 by Andy Rubin (co-founder of Danger),
Rich Miner (co-founder of Wildfire
Communications, Inc.), Nick Sears (once VP
at T-Mobile), and Chris White (headed design
and interface development at WebTV)
4. Design
Android consists of a kernel based on
the Linux kernel 2.6and Linux Kernel 3.x
(Android 4.0 onwards),
with middleware, libraries and APIs written
in C andapplication softwarerunning on
an application frameworkwhich includes Java-
compatible libraries based on Apache
Harmony.
5. WHAT’S IN IT
• Handset layouts
The platform is adaptable to larger, VGA, 2D
graphics library, 3D graphics library based on OpenGL ES 2.0
specifications, and traditional smartphone layouts.
• Storage
SQLite, a lightweight relational database, is used
for data storage purposes.
6. • Connectivity
Android supports connectivity technologies
including GSM/EDGE, IDEN, CDMA, EV-
DO, UMTS, Bluetooth, Wi-Fi, LTE, NFC and WiMAX
• Messaging
SMS and MMS are available forms of messaging,
including threaded text messaging and Android Cloud To
Device Messaging (C2DM) and now enhanced version of
C2DM, Android Google Cloud Messaging (GCM) is also a
part of Android Push Messaging service.
• Multiple language support
Android supports multiple languages.
7. • Web browser
The web browser available in Android is based on the open-
source WebKit layout engine, coupled with Chrome's V8
JavaScript engine. The browser scores 100/100 on
the Acid3 test on Android 4.0.
• Java support
While most Android applications are written in Java, there is
no Java Virtual Machine in the platform and Java byte code is
not executed.
8. • Media support
• Streaming media support
• Additional hardware support
Android can use video/still cameras, touch
screens, GPS, accelerometers, gyroscopes, barometers, magn
etometers, dedicated gaming controls, proximity and pressure
sensors, thermometers, accelerated 2D bit blits(with
hardware orientation, scaling, pixel format conversion) and
accelerated 3D graphics.
9. • Multi-touch
Android has native support for multi-touch which was
initially made available in handsets such as the HTC
Hero. The feature was originally disabled at the
kernel level (possibly to avoid infringing Apple's
patents on touch-screen technology at the time
Bluetooth
10. • Video calling
Android does not support native video calling, but some
handsets have a customized version of the operating system
that supports it, either via the UMTS network (like
the Samsung Galaxy S) or over IP.
• Multitasking
Multitasking of applications, with unique handling of memory
allocation, is available.
11. • Voice based features
• Tethering
Android supports tethering, which allows a phone to be used
as a wireless/wired Wi-Fi hotspot.
• Screen capture
Android supports capturing a screenshot by pressing the
power and volume-down buttons at the same time
12. • External storage
Most Android devices include microSD slot and can read
microSD cards formatted with FAT32, Ext3 or Ext4 file system.
To allow use of high-capacity storage media such as USB flash
drivesandUSB HDDs, many Android tablets also
include USB 'A' receptacle. Storage formatted with FAT32 is
handled by Linux Kernel VFAT driver, while 3rd party solutions
are required to handle other popular file systems such
as NTFS, HFS Plusand exFAT.
14. • HTC One S • Samsung Galaxy Nexus
The HTC One S is the ultimate The best Android phone to date,
the Galaxy Nexus dazzles with its
multimedia phone, from gaming
curved display, sleek design, fast
to music to snapping high quality
performance, and, of course, the
photos. Ice Cream Sandwich update.
15. • HTC Rezound • T-Mobile MyTouch 4G
If you can deal with subpar Slide
battery life, the HTC Rezound is The MyTouch 4G Slide has one of
an excellent phone that won't the best cameras we've ever
feel outdated anytime soon. tested--and the rest of the phone
is pretty amazing as well.
16. • Motorola DROID RAZR • Samsung Epic Touch 4G
MAXX The slim and speedy Samsung
The Droid Razr Maxx packs in a Epic Touch 4G is excellent for
dual-core processor, large battery gaming, Web browsing and
and LTE in a very thin frame. watching video, but the plasticky
design feels a bit on the cheap
side.
17. • Motorola Droid Razr • Motorola Droid Bionic
The long-awaited Droid Bionic is
The thin and elegant Motorola blazing fast and has a slew of
Droid Razr is smoking when it great entertainment and business
comes to data speeds and features, but the high price might
performance, but the short make it a hard sell.
battery life is a disappointment.
18. • Samsung Galaxy S II (T- HTC Evo 3D
Mobile) Uneven call quality doesn't stop
the Evo 3D from being the best
Like the rest of the Galaxy S II
phone currently available on
series, the Galaxy S II on T-Mobile Sprint.
is one of the best phones
currently available, hands down.
20. ADVANTAGES
• MULTITASKING
• Notification- you can easily see your notification
through SMS
• Android application market- games, lifestyles and
themes are some application that can be found.
• Can install a modified ROM
• Widget – absolutely right, with the widgets on the
home screen, You can easily access a variety of settings
quickly and easily.
• Google Maniac – If you are a loyal user of Google
services ranging from Gmail to Google Reader
21. DISADVANTAGES:
• continuous Internet connection – Yups,
most Android phones require a simultaneous
Internet connection alias continuously active.
that means must be prepared to subscribe Agan
GPRS packet that suits your needs.
• Advertising – Application in the Android
phones can indeed be obtained easily and for
free, but the consequences in each of these
applications, will always be ads on display, either
the top or bottom of the application
