| Bluetooth is a new low power wireless data | | | | virtually indispensable for use while driving, which |
| transmission technology and protocol, designed to | | | | requires special caution. Bluetooth headsets allow |
| replace existing wired connections, such as with | | | | talking on the phone without having to hold it in |
| connecting personal appliances, office equipment | | | | your hand. Moreover, such headsets emit much |
| and household appliances. The range of portable | | | | less of the harmful radiation than the cell phones |
| devices, which Bluetooth can be used for, is | | | | themselves. |
| impressive, including Bluetooth headsets for mobile | | | | Bluetooth has its competitors, including IrDA |
| phones, electronic notebooks, PDAs, and many | | | | OBEX, and HomeRF. |
| other devices. Furthermore, the number of | | | | IrDA is an infrared wireless connection technology, |
| devices compatible with Bluetooth is constantly | | | | capable of connecting two devices, located up to |
| increasing. | | | | 1-2 meters (3-6.5 feet) apart. The major |
| Bluetooth technology was developed in 1998 by a | | | | drawback of IrDA is that this connection will not |
| group of leading telecommunication companies. | | | | work, if there are obstacles, such as walls, in its |
| Bluetooth provides an opportunity to unite into a | | | | way. Furthermore, unlike Bluetooth, IrDA requires |
| local network a wide range of devices, from | | | | a direct "point to point" connection between the |
| mobile phones and computers, and even | | | | devices. |
| refrigerators. Some of the important advantages | | | | HomeRF is designed to link household audio and |
| of this technology include: low cost, small size, | | | | video devices and to build a home radio network. |
| great compatibility and ease of integration into | | | | Data transmission is also at a 2.4 GHz frequency, |
| various applications. | | | | but with jumps by 50 times per second. The |
| Bluetooth technology can be used to connect | | | | carrying capacity of HomeRF is larger than that |
| your cell phone with a PDA or laptop, which is | | | | of Bluetooth. However, the number of connected |
| much more convenient, in comparison to having | | | | devices is limited to 127. The range is up to 50 |
| to monitor "point to point" infrared connections | | | | meters (164 feet). |
| between the devices, or using cramped wires, | | | | As we can see, Bluetooth has some important |
| connecting two devices. | | | | features, allowing it to outdo its competitors. |
| Bluetooth devices transmit confidential personal | | | | One of the possible directions for the future |
| and business information and other data that | | | | development of the Bluetooth systems is the |
| must be protected. Bluetooth is a smart technical | | | | availability of an automatic connection between |
| device, providing the owner with various additional | | | | devices. Generally, the number of connected |
| possibilities, such as changing the level of | | | | devices changes quite frequently within a network. |
| protection with a password, and many other | | | | Setting the connections manually each time can |
| options. | | | | be quite uncomfortable. |
| Bluetooth systems are capable of equipping mobile | | | | Growing demand in Bluetooth networking makes |
| phones with various external devices, such as | | | | this protocol technology become more powerful |
| Handsfree external memory and wireless | | | | and reliable with each new version. |
| modems. A Bluetooth communication device is | | | | |