There is a method of connecting devices, called Bluetooth. A Bluetooth connection is wireless and
automatic, and it has a number of interesting features that can
simplify our daily lives.
Bluetooth is essentially a networking standard that works at two levels:
The Problem
When any two devices need to talk to each other, they have to agree on a number of points before the conversation can begin. The first point of agreement is physical: Will they talk over wires, or through some form of wireless signals? If they use wires, how many are required -- one, two, eight, 25? Once the physical attributes are decided, several more questions arise:- How much data will be sent at a time? For instance, serial ports send data 1 bit at a time, while parallel ports send several bits at once.
- How will they speak to each other? All of the parties in an electronic discussion need to know what the bits mean and whether the message they receive is the same message that was sent. This means developing a set of commands and responses known as a protocol.
Bluetooth is essentially a networking standard that works at two levels:
- It provides agreement at the physical level -- Bluetooth is a radio-frequency standard.
- It provides agreement at the protocol level, where products have to agree on when bits are sent, how many will be sent at a time, and how the parties in a conversation can be sure that the message received is the same as the message sent.
Top 5 Bluetooth Gadgets:
Samsung YP-P2 Widescreen Music Player
Motorola T815 Navigation Unit
I remember the days when we use Bluetooth device to transfer data from one machine to other but trends have been changed, use of blue tooth is getting decrease, anyways thank you for sharing such post..
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