Last month, it would have been accurate to declare the Walkman line of mobile phones from Sony Ericsson as dead and another artifact in the dustbins of mobile phone history. But just this month, the struggling Japanese-Swedish mobile phone maker just announced it is reviving the Walkman line with two new non-smartphone handsets pitched to [...]
The basic concept of cellular phones began in 1947 when researchers looked at crude mobile (car) phones and realized that by using small cells (range of service area) with frequency reuse could increase the traffic capacity of mobile phones substantially, however, the technology to do it was nonexistent.
Anything to do with broadcasting and sending a [...]
A cell phone is nothing but a radio, but very high-tech. It is basically like a CB radio or walkie-talkie. But CB radio or walkie-talkie is a simplex system, where at a time a person can talk or listen. But a cell phone is a duplex device, where a person can listen and talk at [...]