Mobile phones

Mobile phones

Industry: Mobile communications

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Mobile phones

General packet radio service (GPRS)

Mobile communications; Mobile phones

A GSM data transmission technique that transmits and receives data in packets. GPRS offers a permanent connexion between the wireless device and the network.

Time division multiple access (TDMA)

Mobile communications; Mobile phones

A digital transmission technique in which a radio frequency is divided into time slots that are allocated to multiple calls. In this way, a single frequency can support multiple, simultaneous data ...

Dead spot

Mobile communications; Mobile phones

A geographic location within the coverage area of a wireless network where radio signals cannot be received. Dead spots are often caused by electrical interference or physical barriers such as hills, ...

Series 40 user interface

Mobile communications; Mobile phones

A user interface that is optimised for small phones with colour displays. The series 40 user interface has a high-resolution colour display and supports four-way scrolling. The screen size is 128 x ...

Digital

Mobile communications; Mobile phones

A description of information encoded as one of two states, either binary "0" (off) or binary "1" (on). These are referred to as binary digits or bits. See also Analogue.

Series 80 user interface

Mobile communications; Mobile phones

A two-hand operated user interface with colour screen and space for different types of applications. The Nokia 9200 Communicator series represents the standard series 80 product, which has a full ...