Nielsen's survey results show that for the first time, smart phones surpassed non-smart phones in terms of sales volume. At the same time, Google’s Android system continues to lead the US smart phone market with excellent performance. It is understood that at this time of last year, only 34% of users will consider smartphones when changing phones, and now, this proportion has risen to 55%. Among mobile phone users in the United States, 38% use smart phones. As the leader in smart phone operating systems, Google’s share of the Android system has reached 38%, and Apple has grown slightly, reaching 27%.
But Nielsen's report is not entirely good for Android. In fact, due to Apple's powerful competition, Android's growth momentum has slowed down. With the arrival of a large number of Android phones this summer, and the possible arrival of the iPhone 5, the battle between Google and Apple will continue to heat up. There is no doubt that Apple's cooperation with several new operators has injected new vitality into it.
Electronic Components Resistor
Resistor (Resistor) commonly known as resistance directly in our daily life.It is a current limiting element. When the resistance is connected to the circuit, the resistance value of the resistor is fixed, usually two pins.Fixed resistors are those whose resistances cannot be changed.Resistance variable is called potentiometer or variable resistor.The ideal resistor is linear, that is, the instantaneous current through the resistor is proportional to the applied instantaneous voltage.Variable resistor for partial pressure.On the exposed resistor body, one or two movable metal contacts are pressed tightly.The contact position determines the resistance between any end of the resistance body and the contact.
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