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 It was eight months ago that Microsoft launched its revamped mobile operating system, Windows Phone 7. Overall, the platform was well-received both by users and the tech press, as they lauded the fresh, bold, and easy-to-use interface; thoughtful integration of features; and improved performance. However, it also had its fair share of shortcomings and pitfalls.  This fall, Microsoft will release its first major update for Windows Phone, bringing more than 500 new features to the OS. Known up till now as Mango, the update will formally go by the name of Windows Phone 7.5; it focuses on improving three key areas: communications, apps, and Internet.  We got a brief look at some of the enhancements during a preview event in late May, but recently, Microsoft gave us a chance to dive deeper into Mango with a technical preview of the OS. Since the software wasn't final, we weren't able to test out everything, but below you'll find our hands-on impressions of some of the more ma...

Oppo introduces the world's thinnest phone. The Oppo R5 also has an octa-core 64-bit processor, you'll need an adapter to connect headphones. The renowned Chinese manufacturer Oppo presents R5, the world's thinnest phone with a thickness of only 4.85mm. The new cell Oppo R5 is more than her slender body, also has a 64-bit processor and Full HD screen. The Oppo R5 is constructed of aluminum measures 148.99 x 74.5 x 5.85mm and octa-core 1.5GHz Snapdragon 615, 2GB of RAM, 16GB of storage memory, 13 megapixel camera with Sony IMX214 sensor, a front camera 5 megapixel camera, LTE, Wi-Fi 802.11ac, Bluetooth 4.0 and 2,000mAh battery recharged with turbo .. Its screen is 5.2 inches wide viewing angles and has coloros 2.0, a firmaware based on Android 4.4 KitKat. To keep all these components in this thin body, Oppo created a derivative of liquid metal coolant and materials that change shape to dissipate heat from the processor. The phone is so thin that it does not have the hole for...

Phone circuits are busy pointer. A busy signal is a signal that indicates that someone is trying to call a phone number but could not be contacted because the phone if it is not involved, or because the circuits are busy, calls are impossible to solve. On many phones, busy signals take the form of a distinctive tone, but a busy signal can also be visual, as in the case yanga phone designed for users of deafness or hearing impairment. Many people are familiar with a busy signal sounds, because significantly different from the dial tone, a tone that indicates that the phone line is open and ready to be called. In most cases, only a busy signal indicates that the person you are calling is a call. A busy signal will also sound when the phone is turned off. In this case, the signal indicates that there are no technical obstacles to placing the call, but calls can not be completed because the phone is in use. In some cases, you can ask the operator to enter, if you call in an emergency, in t...

The Gionee Elife S5.1 gets the title of being the world's thinnest cell phone and receives a certificate of Guinness Records. The cell has a thickness of 5.1mm. Being thin is not only important part for models but also for cell phones and tablets. Year after year we see as seeking to be thinner, but you are at a point where they are difficult to keep your 3.5mm earphone jack into such a slim body. S5.1 The Gionee Elife achieved Guinness record as the world's slimmest your body measures just 5.1mm. Most likely we will have to wait a long time before another product achieves Gionee beat Elife S5 and slim body. After all, some have even increased their cell frosor in recent years to have more powerful components, although there were only millimeters. The Gionee Elife S5.1 has a 4.8-inch screen (Super AMOLED), almost the same size of the new iPhone 6 (4.7 inches). Its screen has a resolution of 1280 × 720 pixels, a 5 megapixel front camera, 8 megapixel rear camera, Snapdragon pro...

PHONE BROADCASTER ELECTRONIC CIRCUIT DIAGRAM The automatic switching consists of resistors R1-R3, variable resistor VR1 as the regulator, transistor T1 and T2, zener diode D2, and diode D1. R1 and VR1 is useful as an input voltage divider from the telephone line. Parts list :     Resistor R1-R2, R4 : 47k ohm     Resistor R3 : 100 ohm     Resistor R5 : 22k ohm     Resistor R6 : 1M ohm     VR1 : 100k ohm     Diode D1 : 1N4001     Zener diode D2 : 24V, 400mA     Capacitor C1 : o.o1 uF     Capacitor C2 : 330 pF     Trimmer C3 : 50p     Capacitor C4 : 5.6 pF     Capacitor C5 : 10 pF     Transistor T1-T2 : BC548     Transistor T3 : BF494     Inductor L1 : 45rotation 36SWG in resistor carbon 1M 1W     Inductor L2 : 3 rotation 21 SWG 12mm diameter  ...

This post share about Mobile Phone charger circuits, previously you can see other Phone Battery Charger Circuit   or Charger Circuit  . This Charger ciruit use to charging phone battery using IC 7805 for plus voltage regulator or & 7905 for min voltage regulator.  Below is a schematic circuit adapter, power supply , or battery charger (for gadgets, mobile phones , MP4player, smartphone) that is equipped with a 5V voltage stabilizer : Diode Bridge diode bridge, known as a diode bridge is used for the rectifier circuit current ( rectifier ) from AC to DC . to make the diode bridge properly you need to know the type of diode to be used, to suit your needs. example: to make the power supply 12 Volt 3 ​​Ampere diode type 1N5401 is needed, for more detail how to choose the right type of diode to the adapter. Voltage stabilizers are commonly used are the 78XX or 79XX type LM, XX indicates the maximum voltage output is generated. see the example in the circuit schem...