Rated power of 4f20btc1
2. The concept of bitcoin was first proposed by Nakamoto in 2009. According to Nakamoto's idea, open source software was designed and released, and P2P network was built on it. Bitcoin is a kind of P2P digital currency. Point to point transmission means a decentralized payment system
3. Unlike most currencies, bitcoin does not rely on specific currency institutions. It is generated by a large number of calculations based on specific algorithms. Bitcoin economy uses a distributed database composed of many nodes in the whole P2P network to confirm and record all transactions, and uses cryptography design to ensure the security of all aspects of currency circulation. The decentralized nature and algorithm of P2P can ensure that it is impossible to artificially manipulate the value of bitcoin through mass proction. The design based on cryptography can make bitcoin only be transferred or paid by the real owner. This also ensures the anonymity of money ownership and circulation transactions. The biggest difference between bitcoin and other virtual currencies is that the total amount of bitcoin is very limited and it has a strong scarcity. The monetary system used to have no more than 10.5 million in four years, after which the total number will be permanently limited to 21 million.
preventive measures:
1. Start the firewall of windows first
2. Right click the network icon in the lower right corner - Sharing Center - Windows Firewall - Advanced Settings - inbound rules on the left - new port on the right - TCP - input these ports - deny access
In 2017, a global popular virtual currency is constantly brushing people's eyes
first, there was an outbreak of "blackmail" virus that raged all over the world. Hackers openly claimed that if they wanted to avoid "blackmail", they would have to hand in a certain amount of bitcoin
then, the Central Bank of China announced a ban on bitcoin trading in China, and the price of bitcoin plummeted
what is bitcoin
bitcoin is a virtual currency concept put forward by a person named "Nakamoto Tsung" in 2009. It does not rely on the issuance of government monetary institutions, but is generated through a series of complex programs and algorithms on the open Internet. Moreover, the total number of bitcoin is permanently limited to 21 million
again, the price of bitcoin is too high and the cost is getting higher and higher how many people can afford this invisible virtual coin without physical mortgage
to sum up, it is too early to say that bitcoin is a fraud, and it is too far fetched to say that it is the trend of the times
but for leek people like me, it's better not to touch such a virtual currency
< HR / >welcome to pay attention to the network account, soldier's military intelligence wing , for more content, you can pay attention to the wechat in my construction: tankt995969 user's website
GTX 1070ti is a sub flagship high-end graphics card just released by NVIDIA, which has been put on sale nationwide. Its performance positioning is between gtx1070 and gtx1080. Compared with GTX 1070, it has obvious advantages, and its performance is close to gtx1080. It is a sub flagship graphics card worth buying. How about GTX 1070ti graphics card? Let's share the performance test and evaluation of gtx1070ti compared with gtx1070 and gtx1080
gtx1070ti gpu-z screenshot
in terms of core frequency, gtx1070ti is limited to 1607-1683mhz by NVIDIA, so AIC manufacturers are not allowed to pre overclock, otherwise it will directly affect the sales of gtx1080, so the performance of gtx1070ti of each brand has little difference
test platform
hardware test platform accessories name brand model reference price processor Intel Core i7 7700k ￥ 999 radiator owl u12s -- graphics card gtx1070, gtx1070ti Gtx1080 ￥ 1249 motherboard ASUS tuf-z270 ￥ 679 memory Chichi Trident Z RGB series magic light halberd DDR4 2400 8g * 2 ￥ 599 hard disk OCZ vector 150 240g solid state hard disk ￥ 599 power supply anatik hcp-1200 ￥ 229 operating system win10 64bit 1709 -- driver geforce 388.13
hardware test platform, we chose flagship i7 7700k processor, z270 motherboard, 240g SSD, z270 motherboard, 240g SSD, z270 motherboard, z270 motherboard, 240g SSD 16g DDR4 memory combination, installed the latest win10 system and 88.13 driver
1. The graphics card slot type of Yingtai tb250 BTC motherboard is PCI-E x163.0 standard
The main board of PCI-E x16 is also divided into 1.0, 2.0 and 3.0 interfaces, which means that the bandwidth is different, but all kinds of graphics cards can be used in general If the interface is 1.0, it will be changed automatically and compatibleYingtai TP75 motherboard is the upgraded version of B75 series for the previous generation of H61 series. Compared with H61 series, native USB3.0 and sata6gb / s interfaces are added
main chipset: intelb75 audio chip: integrated realtekalc6626 channel audio chip memory slot: 2 × Ddr3dimm maximum memory capacity: 16GB motherboard: ATX board size: 30.5 × 21.0cm power socket: a 4-pin, a 24 pin power socket
Yingtai tb250-btc Pro motherboard adopts narrow board design, based on B250 chipset, and supports Intel lga1151 interface CPU. The power supply part adopts 7-phase power supply concept design, with all solid-state capacitor from Taiwan Yubang, which brings extraordinary filtering effect and rability
in terms of memory, it provides 2 DIMMs, supports DDR4 memory, and supports 2400mhz procts at most. Six sata3 interfaces are provided for disk. In terms of interface, the door motherboard provides four USB3.0 ports and two USB2.0 ports with power supply capability. In addition, there are PS / 2 port and DVI interface for keyboard and mouse. Of course, RJ45 network port and audio port are also necessary
the integrated sound card of the motherboard adopts the famous Realtek alc887 chip, supports 7.1 channel output, and is equipped with the audio special capacitor proced by Nippon
in PCI-E slot, tb250-btc Pro motherboard provides up to 12 slots, which can run 12 graphics cards parallel mining at the same time. In order to improve the power supply capacity of PCI-E slot, the motherboard designs two additional D ports to meet the huge power demand of multi graphics card for PCI-E slot
65 73 136 2
6.5g X Y Z
65 / 6.5g = 73 / x = 136 / y = 2 / Z
x = 7.3g
y = 13.6g
Z = 0.2g1 mass of hydrogen 0.2g
2 mass fraction of solute in dilute hydrochloric acid 7.3g/100g * 100% = 7.3%
3 mass fraction of solute in solution after reaction 13.6g / (6.5g + 100g-0.2g) * 100% = 12.8%