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2. List of iPhone models - Wikipedia

   en.wikipedia.org/wiki/List_of_iPhone_models

   The iPhone, developed by Apple Inc., is a line of smartphones that combine a mobile phone, digital camera, personal computer, and music player into one device. Introduced by then-CEO Steve Jobs on January 9, 2007, the iPhone revolutionized the mobile phone industry with its multi-touch interface and lack of physical keyboard.

3. Early iPhone systems-on-chip - Wikipedia

   en.wikipedia.org/wiki/Early_iPhone_systems-on-chip

   The Samsung S5L8900 is a 32-bit system on a chip (SoC) manufactured by Samsung for Apple. It combines an ARM CPU with a PowerVR graphics processor. The first product to feature the chip was the original iPhone, followed by the iPod Touch, and iPhone 3G. Other names for the S5L8900 are ARM 8900B and APL0098. It belongs to Samsung's S5L family of ...

4. iPhone 3GS - Wikipedia

   en.wikipedia.org/wiki/IPhone_3GS

   The iPhone 3GS, stylized as iPhone 3G🅂, [a] is a smartphone that was developed and marketed by Apple Inc. It is the third generation of the iPhone and the successor to the iPhone 3G . It was unveiled on June 8, 2009 [ 6 ] at the WWDC 2009 , which took place at the Moscone Center in San Francisco.

5. Dual-mode mobile - Wikipedia

   en.wikipedia.org/wiki/Dual-mode_mobile

   An example of this is the Samsung SCH-A790. These dual-mode handsets are compatible with both GSM and CDMA networks and are essentially two phones in one device. Such phones make sense in those countries that have both GSM & CDMA networks or international CDMA roamers who want to keep a single handset with two numbers on it.

6. Dual SIM - Wikipedia

   en.wikipedia.org/wiki/Dual_SIM

   Dual SIM standby phones allow both SIMs to be accessed by using time multiplexing. When one SIM is in active use, for example on a call, the modem locks to it, leaving the other SIM unavailable. Older examples of dual-SIM standby phones include the Samsung Galaxy S Duos, [23] the Sony Xperia M2 Dual, [24] and the iPhone XS, XS Max and iPhone XR ...

7. Comparison of mobile phone standards - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_mobile_phone...

   3G: W-CDMA: UMTS (3GSM) Digital: 2001 Worldwide SIM card: None Smaller cells and lower indoors coverage on 2100 MHz; equivalent coverage indoors and superior range to GSM on 850/900 MHz. Very low density Soft Yes [3] 4G: OFDMA: LTE: Digital: 2009 Worldwide SIM card: None Smaller cells and lower coverage on the S band. Very low density Hard No ...