| The technology of Bluetooth will take small area | | | | 6. The transmitter operates around the 2.4 GHz |
| networking to the next level by removing the | | | | frequency band. |
| need for user intervention and help keep | | | | 7. The data channel will change frequency, or |
| transmission power very low to preserve battery | | | | hops, 1,600 times in a second, between the 79 |
| power. Each transmission signal to and from your | | | | allocated channels in the ISM band. |
| cellularphone will use just 1 mw of power, giving | | | | 8. Bluetooth utilizes a spread spectrum frequency |
| you plenty of space on your battery to talk. | | | | hopping RF characteristic to ensure that |
| Bluetooth is a networking standard that will work | | | | independant networking operates when the other |
| on two levels: | | | | devices are in range. |
| 1. It will provide agreement at the physical level, | | | | 9. A piconet is formed when one or more devices |
| as Bluetooth is a radio frequency standard. | | | | open up a channel of communication. |
| 2. It will provide agreement at the level of | | | | 10. A piconet can have a master and up to seven |
| protocol, where products will have to agreeon | | | | slaves. |
| when bits are sent, how many are sent, and how | | | | 11. Communication of the interdevice is based on |
| the parties in conversation can be sure the | | | | the concepts of channels. |
| message recieved is the same one that was sent. | | | | 12. All Bluetooth devices are capable of |
| The major draws to Bluetooth is the fact that it's | | | | transmitting voice. |
| wireless, inexpensive, and automatic. There are | | | | 13. The channel has a total capacity of 1 MB per |
| other ways to get around wires, including infrared. | | | | second. |
| Infrared uses light waves of a lower frequency | | | | 14. There are two types of channels with |
| than the human eye can, and is normally used in | | | | Bluetooth - SCO (Synchronous Connection |
| television remote controls. | | | | Oriented) and ACL (Asynchronous Connectionless). |
| The technology of Bluetooth is intended to get | | | | 15. The SCO channels are time oriented, andare |
| around the problems that normally come with | | | | therefore primarily used for transferring time |
| infrared systems. The 1.0 older standard of | | | | critical data such as voice. |
| Bluetooth has a max transfer speed of 1 MB a | | | | 16. ACL channels are normally used for |
| second, while the 2.0 Bluetooth standard | | | | communicating data. |
| canmanage up to 3.0 MB a second. To make | | | | 17. Data contained in a packet can be up to 2,745 |
| things better, 2.0 is compatible with 1.0 devices. | | | | bits in length. |
| As a solution to wireless, Bluetooth will eliminate | | | | 18. In a single piconet, there can be up to three |
| the need for messy cords, keeping everything | | | | SCO links containing 64,000 bits a second each. |
| nice and neat. It's perfect for those who like to | | | | 19. To avoid collision and timing problems, SCO |
| talk on cell phones, as you no longer need to hold | | | | links are reserved slots that are set up by the |
| the phone next to your ear - which is great for | | | | master. |
| those who travel a Bluetooth is easily the best in | | | | 20. The masters can support up to three SCO |
| wireless handheld technology. When it comes to | | | | links with either one, two, or three slaves. |
| learning, Bluetooth can get quite complicated. To | | | | 21. The slots that aren't reserved for SCO links |
| help you, you'll find the key learning points of | | | | can be used as ACL links. |
| Bluetooth below: | | | | 22. The LMP (Link Management Protocol) will |
| 1. Bluetooth is an energy efficient, low overhead | | | | handle link level security, error corrections, and |
| communication protocol that's ideal for interdevice | | | | the establishment of communications links. |
| communications. | | | | 23. The LMP packets will have priority over user |
| 2. Unlike infrared, Bluetooth doesn't require a line | | | | packets that originate and form the L2CAP layer. |
| of sight. | | | | 24. The L2CAP layer will ensure an acceptable |
| 3. Depending on the implementation, Bluetooth can | | | | quality of service. |
| have a range of up to 100 meters. | | | | 25. No more than one ACL link can exist at the |
| 4. The specification of Bluetooth consists of a | | | | L2CAP layer. |
| Foundation Profile Document and a Foundation | | | | Kanicen is the owner of IT Comser System, IT |
| Core Document. | | | | Comser System welcomes everyone who are |
| 5. The protocol stack for Bluetooth consists of | | | | looking for computer services, maintenance, |
| core protocols, cable protocols, and even adapted | | | | computer rental, pc repair, computer sales and all |
| protocols. | | | | kind of computing resources. |