Easy to dig digital currency
trading mining online time: June 2018
Project Introction: bit-z, founded in Hong Kong in 2016, provides digital asset trading and OTC (over-the-counter trading) services
dividend method: "transaction mining". Users who participate in the transaction can get a refund of service charge (in the form of equivalent BZ, and need to complete three-level certification); Each phase of 10 million BZ will be released step by step, and each phase of 10 million BZ will automatically enter the next phase. The return ratio of each period will decrease by 3%
total number of tokens issued: 1.2 billion BZ.
the simplest digital currency that can be found is directly referred to the exchange for cash after it is found.
it's very refreshing.
just like bitcoin ten years ago, you can mine with ordinary computer, which is awesome
the money you have g up can also be traded in the exchange or cashed out quickly, which is absolutely refreshing.
PSTN (public switched telephone network)
is a global voice communication circuit switched network, including commercial and government-owned
includes commercial and government-owned. It also refers to simple old fashioned telephone service (POTS). It is a collection of all circuit switched telephone networks since Alexander Graham Bell invented the telephone. Today, in addition to the final connection between the user and the local switchboard, the PSTN has been fully digitized technically
extended data:
the main components of PSTN network are as follows:
1. Transmission system: cable (cable, optical fiber) is the main, cable and wireless (satellite, ground and radio) are used alternately, and the transmission system transits from PDH to SDH and DWDM
2. Switching system: the switching equipment in the telephone office, the exchange, has been programmed and digitized graally, and the connection process is controlled by computer User system: including telephone, fax and other terminals, and a pair of wires used to connect them with the switch (called user loop). The user terminal has been graally digitized, multimedia and intelligent, and the user loop has been digitized and broadband Signaling system: in order to realize the communication between users, various control signals are provided between exchange offices, which are mainly call establishment and releaseaccess through PSTN:
dial up Internet / Intranet / LAN- Network interconnection between two or more LANs
Although PSTN has some problems in data transmission, it is still an irreplaceable networking medium (Technology). In particular, the application of xDSL technology and procts invented by Bellcore, which is based on PSTN, expands the development and application space of PSTN, making the networking speed between 9mbps and 52mbps