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Samsung Galaxy S25 Ultra - examples of mobile devices. A mobile device or handheld device is a computer small enough to hold and operate in hand. Mobile devices are typically battery-powered and possess a flat-panel display and one or more built-in input devices, such as a touchscreen or keypad.
Radio sets in the UK and the English-speaking world that were not portable continued to be referred to as wireless sets into the 1960s. [1] [2] The term wireless was revived in the 1980s and 1990s mainly to distinguish digital devices that communicate without wires, such as the examples listed in the previous paragraph, from those that require ...
Context sensitivity-mobile devices can both gather and respond to real or simulated data unique to the current location, environment and time. Connectivity-a shared network can be created by connecting mobile devices to data collection devices, other devices or to a common network.
The BlackBerry Pearl 8100 was the first BlackBerry without a trackwheel, which was replaced by a miniature trackball to enable full 4-way and mouse-style navigation on a BlackBerry. The look of the new trackball gave the "Pearl" its name. The 9000 series was launched in 2008.
A walkie-talkie, more formally known as a handheld transceiver, HT, or handheld radio, is a hand-held, portable, two-way radio transceiver. Its development during the Second World War has been variously credited to Donald Hings, radio engineer Alfred J. Gross, Henryk Magnuski and engineering teams at Motorola. First used for infantry, similar ...
The 300 Series Travel Companion is not a PDA; marketed as a Personal Navigation Device, it is a handheld GPS unit operating on the Windows CE 5.0 core Operating System with a custom user interface. The 600 and 900 series are phones with integrated GPS and 3G capabilities, running the WM6 Professional.
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A device that wants to communicate only with a bonded device can cryptographically authenticate the identity of the other device, ensuring it is the same device it previously paired with. Once a link key is generated, an authenticated ACL link between the devices may be encrypted to protect exchanged data against eavesdropping .