1-1 Briefly describe the commonly used mobile phone operating systems.
Currently, the operating systems on mobile phones mainly include Android, iOS, Windows Mobile, Windows Phone, BlackBerry, and Symbian.
1-2 Who is the founder of the Android mobile operating system and who officially released it in which year?
Android was first founded by Andy Rubin and was acquired by search giant Google in 2005. On November 5, 2007, Google officially released the
platform.
1-3 Briefly describe the characteristics of the Android platform.
1. Openness
In terms of advantages, the Android platform is first of all its openness. The open platform allows any mobile terminal manufacturer to join the Android Alliance. Significant
openness can enable it to have more developers. As users and applications become more abundant, a brand-new platform will soon mature.
Openness is conducive to the accumulation of popularity for the development of Android. Popularity here includes consumers and manufacturers. For consumers, the biggest
benefit is the abundant software resources. An open platform will also bring greater competition. In this way, consumers will be able to purchase their favorite mobile
phones at a lower price .
2. Break free
For a long period of time in the past, especially in Europe and the United States, mobile phone applications were often restricted by operators, and which functions were used to access which networks were
almost controlled by operators. Since the launch of the iPhone, users can connect to the Internet more conveniently, and operators have less constraints. With
the gradual transition and improvement of 2G to 3G mobile networks such as EDGE and HSDPA , the free access of mobile phones to the network is no longer a joke among operators.
3. Rich hardware
This point is still related to the openness of the Android platform. Due to the openness of Android, many manufacturers will launch
a variety of products with different functions and features . The functional differences and features will not affect data synchronization or even software compatibility. For example, if you
switch from a Nokia Symbian-style phone to an Apple iPhone, you can also bring the excellent software in Symbian to the iPhone for use, contacts and other data can be transferred easily.
4. Developer
The Android platform provides third-party developers with a very broad and free environment, so they will not be obstructed by various rules and regulations. It is conceivable that
how many novel and unique software will be born, but there are also two sides, blood, violence, How to control erotic programs and games is
one of the problems left to Android .
5. Google app
Nowadays, Google, which dominates the Internet, has gone through decades of history. From a search giant to a comprehensive Internet penetration, Google services such as maps, mail,
search, etc. have become important links between users and the Internet, and Android platform phones will seamlessly integrate these Excellent Google service.
1-4 Which major versions of Android have been released so far?
The main versions of Android released so far and their release time are shown in the table below.
Version alias release date
1.5 Cupcake (cupcake) April 30, 2009
1.6 Donut (donut) September 15, 2009
2.0 Éclair (Eclairs) October 26, 2009
2.1 Éclair (Eclairs) January 10, 2010
2.2 Froyo (Frozen Yogurt) May 20, 2010
2.3 Gingerbread (Gingerbread) December 7, 2010
3.0 Honeycomb (Honeycomb) February 2, 2011
4.0 Ice Create Sandwich 2011 on October 19
4.1 jelly Bean (jelly Bean) 2012 June 28
4/21
4.2 jelly Bean (jelly Bean) 2012 October 30
4.3 jelly Bean (jelly Bean) July 25, 2013
4.4 KitKat ( KitKat Chocolate) November 1, 2013
5.0 Lollipop (Lollipop) October 15, 2014