Bluetooth+and+Data+Transmission


 * Bluetooth:**
 * Designed to enable PDAs, mobile phones, computers and other machines to transfer data.
 * Short range (10m)
 * The short range requires less power and easy selection of devices.
 * Slow compared to WiFi.


 * Data Transmission:**
 * Consists of hardware, software and communication facilities.
 * Data Transmission Channels
 * Carry the data from one location to another and can be classified according to bandwidth.
 * Higher the Bandwidth, faster the transfer, vice versa.
 * Narrowband:
 * Transmitting data over a telephone line.
 * Telephone lines are in analogue form.
 * A modem converts digital signals to and from analogue signals.
 * Up to 56Kbps
 * Broadband:
 * Transfers data using ADSL.
 * Transmitting digital signals using telephone lines.
 * Coaxial cables. fiber optic cables. microwave links and communication satellites used to transmit signals.
 * Faster than narrowband.