ada $0.04303.30%ae $0.1739*0.80%bcd $0.4930*1.75%bch $232.070.54%bcn $0.0004*0.00%bnb $17.198*8.76%bsv $84.285*0.49%btc $8,246.40.64%btg $8.28271.85%btm $0.0589*6.57%bts $0.0289*1.40%dash $73.0921.90%dcr $17.000*0.00%dgb $0.00890.00%doge $0.00240.45%eos $3.19930.67%etc $4.69280.69%eth $183.760.46%ltc $57.9610.02%gnt $0.0520*0.29%icx $0.1821*5.48%iost $0.0052*2.93%lsk $0.93040.26%miota $0.2756*0.84%mkr $497.17*0.00%moac $0.2384*3.79%nano $0.7950*4.31%neo $7.86883.75%omg $0.9146*2.19%ont $0.6493*3.11%ppt $0.5800*1.75%qtum $1.87632.08%rep $8.49501.42%sc $0.0020*20.25%steem $0.1491*0.73%strat $0.3696*0.00%trx $0.01711.90%usdt $1.00010.11%tusd $1.0005*0.09%waves $0.98303.43%xem $0.04312.96%xlm $0.06392.17%xmr $56.3740.63%xrp $0.27991.40%xtz $0.9460*4.75%xvg $0.00376.30%zil $0.0063*8.17%zrx $0.25506.47%


从广义上来看,网络交换机分为两种:广域网交换机和局域网交换机。广域网交换机主要应用于电信领域,提供通信用的基础平台。而局域网交换机则应用于局域网络,用于连接终端设备,如PC机及网络打印机等。从传输介质和传输速度上可分为以太网交换机、快速以太网交换机、千兆以太网交换机、FDDI交换机、ATM交换机和令牌环交换机等。从规模应用上又可分为企业级交换机、部门级交换机和工作组交换机等。各厂商划分的尺度并不是完全一致的,一般来讲,企业级交换机都是机架式,部门级交换机可以是机架式(插槽数较少),也可以是固定配置式,而工作组级交换机为固定配置式(功能较为简单)。另一方面,从应用的规模来看,作为骨干交换机时,支持500个信息点以上大型企业应用的交换机为企业级交换机,支持300个信息点以下中型企业的交换机为部门级交换机,而支持100个信息点以内的交换机为工作组级交换机。 [3] 


Bitcoin Cash (BCH) is hard fork (a community-activated update to the protocol or code) of Bitcoin that took effect on August 1st, 2017 that increased the block size to 8MB, to help the scale the underlying technology of Bitcoin.Nov 16th 2018: BCH was hard forked again and split into Bitcoin SV and Bitcoin ABC. Bitcoin ABC became the dominant chain and took over the BCH ticker as it had more hashpower and majority of the nodes in the network.


Bitcoincash is a peer-to-peer cryptocurrency in many regards similar to Bitcoin. Coins are created and transfered using an open source cryptographic protocol and are not managed by any central authority. Thanks to the adoption of Segregated Witness, and the Lightning Network, bitcoincash has some technical advantages over Bitcoin and other major cryptocurrencies. It is capable of handling a greater number of transactions in a given time and thus reducing potential bottlenecks, as seen with Bitcoin. Also, payment cost of bitcoincash is nearly zero and it’s payment speed is approximately four times greater than that of Bitcoin.

MetaTrader的4 cryptocurrency演示

At the time of the software upgrade (also known as a fork) anyone owning bitcoin was also in possession of the same number of Bitcoin Cash units.[19][16] The technical difference between Bitcoin Cash and Bitcoin is that Bitcoin Cash allows larger blocks in its blockchain than Bitcoin, which in theory allows it to process more transactions per second.[20] Bitcoin Cash was the first of the Bitcoin forks, in which software-development teams modified the original Bitcoin computer code and released coins with “Bitcoin" in their names, with "the goal of creating money out of thin air."[21] In relation to Bitcoin it is characterized variously as a spin-off,[5] a strand,[22] a product of a hard fork,[23] an offshoot,[24] a clone,[15] a second version[14] or an altcoin. On 1 August 2017 Bitcoin Cash began trading at about $240, while bitcoin traded at about $2,700.[16]


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BCH is a cryptocurrency established as a result of the hard fork that took place to manage the scalability problem. Bitcoin Cash has a number of significant differences to Bitcoin: it is advertised as being faster and cheaper to use, the maximum block size is eight megabytes against one in previous Blockchain, and it has an emergency difficulty adjustment feature. Bitcoin Cash also uses 0-conf (or zero-conf) which allows for nearly instant transactions, meaning Bitcoin Cash transactions are almost always confirmed in the next block.