Now the mobile phone field, apple is undoubtedly the leader. And its operating system iOS also become the most mainstream one of the operating system. But as the result of an army (Android), yea, cisco iOS market share was gradually being Andros nibbling. In June, Microsoft and released WP7 (Windows Phone  7)of the new version, code-named "Mango" (Mango), do not know the Microsoft and will make any improvement, to save on the Phone on the field in the series. And once the industry overlord--saiban (Symbian), had no turning back now, roll out the stage of history is just a time question.

In these few big mainstreams in the operating system, the most powerful is undoubtedly the iOS and result.

IOS as the iPhone "silk" operating system has become the iPhone "soul". It is also because with it, the only iPhone is very good user operation experience. The most important is, iOS can support hundreds of thousands of applications and games, this is without a doubt apple products are the most attractive destinations. Plus iOS and iPhone and iPad good fusion, make apple products very get the favour of people. But cisco iOS closeness and restrictive also became its drawbacks. As is known to all, iOS is not like Android as open source, therefore, iOS only limited in apple products. Also, apple will not free to you so much application, you must on the App Store (applications Store) it can take money to install the application of official authorization. This limitation is undoubtedly the user shut up in a big apple for you by a "jail", and will have a "prison break" (Jailbreak) production.

Dormancy key: also called the lock screen keys, the key of the power, is located in the top machine, used for on-off screen, long after pressing tip off or and other key combined operation;

Home button: located in machine below the screen, used to run out of the application, or combined with other key operation;

1. Prohibited the use of APP Store application

If your iPad usually frequently be used by someone (or child), this time you can through the "Settings" inside the "general" menu "limit" the project to banned APP Store application, in case anyone buy the wrong operation for the application.

2. Quick locate the date

If in the calendar, want to choose the future or the past a few years or more than 10 years of one day, forward or backward, click on the year is very troublesome, a different way can be long hold year, then let your hand, at this time the year will automatically change forward or backward. Until it reaches the fixed number of year, click once, will stop automatically.

3. iPad screenshots

Similar with the iPhone, and press the key of the power and the Home button, and the screen content in PNG format images will be stored in the photo.

4. iPad appear unusual and can't turn off

Just long press "Home button" and "dormancy key" until the iPad to restart.

5. iPad battery

In the connection of computers, if the screen is closed will enter for charging status, if the screen will show is not open to charge.

6. Browsing the web skills

Use Safari browsing the web, can open the links, can choose the long hold this link, the system will pop up small menu, let you choose "open", "in the new page open", or "copy" option. So it won't cause every time according to a link to open a new window, full screen window is caused by the chaotic. And if want to transfer music from ipad to mac, here we highly recommend use the professional ipad to mac transfer software.

7. Open the music EQ functions will be more

If you opened the music player iPod EQ function (equalizer), after opening, can make more songs pleasant-sounding, but listen to music has been open when in EQ, it takes a lot of power. Can through the "Settings" inside the "iPod" menu, shutting down the "equalizer".

8. iPad using temperature

Use IPad, environmental temperature is suitable between 0-35 degrees Celsius, so don't use the sun. The phone was off the environmental temperature storage equipment range is, 20 to 45 degrees Celsius-so when not in use, not suggested that the iPad in hot car alone.

9. System crashed, try soft restart

As long as hold dormancy key and the Home button for seconds, iPad will restart.

10. Forced exit to return to the desktop

Just hold down the Home button several seconds, it can be forced to exit the application to to the desktop.

11. Wrong according to Home button but don't want to quit

Continue to hold down the Home button don't let go for about 5 seconds, it won't quit the program.

12. Importing free PDF books files

And iTunes and iPod, iPad iBooks of application can also import specific format custom books. But sometime, it can not allow you to import the PDF ebook into your ipad, this time, you have to try PDF converter.