Mobile technology enables us to stay in touch with family and friends while we are away from home, and it has allowed remote working. It is used for health monitoring and recording, facilitating information flow from remote locations. It is also helping farmers monitor weather and agricultural news, acting as the backbone for m-agriculture.
A cellphone is a miniaturized computer that uses cellular mobile technology to transmit voice, data and mobile apps. Cellular systems are radio networks that can talk to a cellphone over long distances using a technique called frequency-shift keying, which alternates between sending 1s and 0s over different frequencies. This helps separate calls and avoid interference and scrambling.
The first cellular mobile phone network, 1G (also known as AMPS or analog AMPS), was introduced in the 1980s and enabled voice communications. The next generation of digital cellular mobile phone technologies, 3G (UMTS or wideband code division multiple access) and 4G (LTE or long term evolution), improved data speeds, offering internet browsing, GPS functionality, video calling and better call quality.
More recent advances in mobile technology include the use of 5G, which increases data transfer rates and reduces latency (the time it takes for a device to process what it is supposed to do). It allows streaming high-resolution videos, real-time gaming, and high-quality video conferencing. It also enables more devices to connect at once and provides greater connection density, which allows many users to have the same experience without experiencing lag or dropping connections.
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