Why Bluetooth is mentioned very much. Because Bluetooth technology is expected to replace the cables in various devices. To be connected to a computer, such as replacing the connection between the notebook PC, PDA and mobile phones, fax machines, printers, keyboards and other peripheral devices. This reduces the hassle of cables, which is inconvenient. And has many advantages over the use of infrared, which requires the machine to be connected to the match. But then the radio Only in range of the spectrum, it can connect instantly addition, Bluetooth is also expected to be applied to home electronics. The future will be connected to the internet
the frequency range of Bluetooth is between 2.402 GHz to 2.480 GHz caused by Scan per 1 MHz of 79 Hops for the country with the use of this frequency, then we may reduce Bandwidth. Down by the Internal Software Switch is the maximum speed that can Scan is 1600 Hops per second distance that can use Bluetooth to be between 10 cm to 10 m, but can be extended up to 100 meters by increasing the transmission
working models. The Bluetooth (Bluetooth Module) is defined structural work table which can be seen that there are eight layers over the first layer of the OSI model, making it the working space on each floor. Unlike the OSI model, but working order. Look alike Each layer of the model, the Bluetooth name and function as follows: Tier 1 Radio is going to get. And really radio The integrated hardware sector - receive radio controlled from the top, whether the Base band frequency. And the strength of the signal. The data frames to send the top 2 Base band function of this layer is regarded as the heart of Bluetooth in hardware, it's not. The main function of this layer The control circuit sector - radio on the floor. The most important point of control. It is to choose the frequency of data synchronization between Master and Slave to have to jump in the same layer 3 Link Controller controls the connection of Bluetooth all, whether the status of the device. The operating mode of the device Search nearby Bluetooth devices to include the choice of a Master or Slave in various environments Tier 4 Link Manager converts commands received from upstairs downstairs known sequence functions. And to send commands to control all of the lower layer 5 HCI (Host Control Interface) connection between an upper layer protocol running on the system. (Such as in notebook computers running on the CPU x86) to control the behavior of Bluetooth (eg, card, PCMCIA Bluetooth elsewhere in notebook computers) make the program known as control commands and Bluetooth Class 6 L2CAP. (Logical Link Control and Adaptation Protocol) serves the multi-duplex data from the top floor, which might be running multiple programs simultaneously. And divides data into packets at layer 7 RFCOMM / SDP protocols for RFCOMM is virtual. Application makes the top look like a Bluetooth serial port (Serial Port) Common SDP (Service Discovery Protocol) is a protocol that allows for services from the device. Bluetooth other in the same zone boundaries pins Gold Class 8 Applications is part of the program to receive or send data to the user
Bluetooth. It is a standard mobile phone, computer, PDA, notebook, including appliances. New forms of communication make the market change. Research has found that the increase in the development of products and services. Communication more convenient and faster in the world of digital, so Bluetooth is a technology that is growing fastest in history
(Bluetooth is. on - line in 2549) Hosting What is a Data Transfer is Hosting is a part of the machine. server (Server), which provides hosting services (Hosting Service Provider) has been allocated for rent. Most of the services on a monthly or annual basis, which Hosting These are the characteristics of the space on a computer server (Server) Shared Hosting The selection was based on the need to take your work as one. the amount of space you want to use as 10,000MB, 20,000MB, 40,000MB or 60,000MB.
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