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This list ranks the countries of the world by the number of mobile phone numbers in use. Note that it is not the number of phone devices that are being given here, but the number of phone numbers in a country. In some countries, one person might have two mobile phones. Also, some mobile phone numbers may be used by machines as a modem (examples ...
The best-selling touchscreen phones are the Apple iPhone 6 and 6 Plus, both released in 2014. Together, they have sold over 222 million units. The best selling flip phone is the Motorola RAZR V3, released in 2004. It sold over 130 million units. The best-selling slider phone is the Samsung E250, released in 2006.
The backs of an iPhone 6, an iPhone 7, an iPhone 8, and an iPhone SE (3rd generation) 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 ...
Microsoft Excel is a spreadsheet editor developed by Microsoft for Windows, macOS, Android, iOS and iPadOS. It features calculation or computation capabilities, graphing tools, pivot tables, and a macro programming language called Visual Basic for Applications (VBA). Excel forms part of the Microsoft 365 suite of software.
Cell phone data plans are hard to escape these days as hundreds of thousands of Google Android phones and Apple iPhones are activated every day. These smartphones bring access to the Web ...
GSM uses TDMA and FDMA for user and cell separation. UMTS, IS-95 and CDMA-2000 use CDMA. WiMAX and LTE use OFDM . Time-division multiple access (TDMA) provides multiuser access by chopping up the channel into sequential time slices. Each user of the channel takes turns to transmit and receive signals.
Office Suite names that are on a light purple background are discontinued. Name. Word processing Software. Spreadsheet Software. Presentation Software. Notetaking software. Diagramming software. Raster graphics editor. Vector graphics editor.
Ragone plot. A Ragone plot ( / rəˈɡoʊniː / rə-GOH-nee) [ 1] is a plot used for comparing the energy density of various energy-storing devices. On such a chart the values of specific energy (in W·h / kg) are plotted versus specific power (in W/kg). Both axes are logarithmic, which allows comparing performance of very different devices.