Financial technology in Shenzhen.

In the fu Tian subway station there existed Shenzhen trading market and as soon as possible some fund institutions and companies procedures high frequency trading and they said they are working base and working environment Just decide to trade marketing so as to get the high speed and the frequency and the proficiency of the transportation of the data and some Information.
So finance technology not only concerned about the technology of computer science and technology, it is also concerned about the transportation of the light and lying under the floor. So we talk about the stage of the osi modeling of computer network. So we talk about the data link layer and the physical layer.
Some network facilities and basic facilities are only concerned about the upper layers of the transportation and the conversation layers and also and something about the operation system and database. But actually we also need to concern about the physical distance of the light And lines.