What does the unit of force data mean
computing power is a measure of bitcoin network processing power. That is, the speed at which the computer calculates the output of the hash function. Bitcoin networks must perform intensive mathematical and encryption related operations for security purposes. For example, when the network reaches a hash rate of 10th / s, it can perform 10 trillion calculations per second
in the process of getting bitcoin through "mining", we need to find its corresponding solution M. for any 64 bit hash value, there is no fixed algorithm to find its solution M. we can only rely on computer random hash collisions. How many hash collisions can a mining machine do per second is the representative of its "computing power", and the unit is written as hash / s, This is called workload proof mechanism pow
computing power provides a solid foundation for the development of big data, and the explosive growth of big data poses a huge challenge to the existing computing power. With the rapid accumulation of big data in the Internet era and the geometric growth of global data, the existing computing power can no longer meet the demand. According to IDC, 90% of the global information data is generated in recent years. And by 2020, about 40% of the information will be stored by cloud computing service providers, of which 1 / 3 of the data has value
therefore, the development of computing power is imminent, otherwise it will greatly restrict the development and application of artificial intelligence. There is a big gap between China and the advanced level of the world in terms of computing power and algorithm. The core of computing power is the chip. Therefore, it is necessary to increase R & D investment in the field of computing power to narrow or even catch up with the gap with the developed countries in the world
unit of force
1 KH / S = 1000 hashes per second
1 MH / S = 1000000 hashes per second
1 GH / S = 1000000000 hashes per second
1 th / S = 100000000000 hashes per second
1 pH / S = 100000000000 hashes per second
1 eh / S = 100000000000 hashes per second
The basic unit of computer data storage is byte
1, byte
byte is the basic unit of computer data processing. A byte is composed of 8 binary bits, which is usually represented by B. In computers and other digital devices, bytes are generally used as the basic unit of storage capacity. In addition to B, there are KB, MB, GB, TB and Pb
In a computer, a series of numbers are processed or calculated as a whole, which is called a computer word, or word for short. A word is usually made up of one or more bytes. For example, the word of 286 microcomputer consists of two bytes, and its word length is 16; The word of 486 microcomputer consists of four bytes, and its word length is 32-bit computer
extended data
system abbreviation, Chinese and English full name reading, abbreviation and byte reading of data storage expression unit:
1, bit / bit / n. [C] bit (bit), the minimum unit describing the amount of computer data, Chinese name "bit" transliterated "bit", abbreviation B (fixed lowercase), It was put forward by the mathematical statistician John Wilder Tukey in 1946 (it is said that it was put forward in 1943). It comes from binary digit. In the binary number system, every 0 or 1 is a bit
this term was first formally used on page 1 of C.E. Shannon's famous paper mathematical theory of communication
Byte / T / n. [C] byte, abbreviated as B (common capital), was invented by IBM computer designer Werner Buchholz in 1956. It was created by bite, but it was spelled as byte to avoid bita byte can encode 256 different values (2 ^ 8, all the different combinations of 8 zeros and 1), which can be an integer between 0 and 255, or a letter or symbol in the ASCII character set. ASCII / ANSI encoded English letters occupy one byte and Chinese characters occupy two bytes
3、kilo/ˈ ki:lə&# 650;/ n. It's Greek χ&# 943; λιοι( "Thousand" means "thousand"; Abbreviation K / K [thousand], 10001 or 10 ^ 3 or 1 × 103 thousand units of quantity; Kilobit (KB), kilobyte (KB = kilobyte), K / K / kilobyte for short
4、mega/ˈ megə/ n. It's Greek μ&# 941; γα&# 962;,( "Mega" means "million"; Abbreviation m, 10002 or 10 ^ 6 or 1 × 106 million units of quantity, also known as "trillion"; Megabyte (MB = megabyte / megabyte), referred to as M / megabyte
5、giga/' gɪ gə/ n. It's Greek γ&# 943; γα&# 962; It means "giant /" billion "; Abbreviation G [Ji] Ka, 10003 or 10 ^ 9 or 1 × 109 billion units of quantity, also known as "Gigabit / Beijing"; Gigabyte (GB = Gigabyte / Gigabyte), referred to as g / Gigabyte
6、tera/' tɪ&# 601; rə/ n. It's Greek τ&# 941; ρα&# 962; It means & quot; (IV) "Tetra"; Abbreviation t [Tai] La, 10004 or 10 ^ 12 or 1 × 1012 trillion / trillion units of quantity, also known as "Cuan"; Terabyte (TB = trillionbyte terabyte), referred to as t / too
7、peta/ˈ pɛ tə/ n. It's Greek π&# 941; ντε Five "penta"; Abbreviation P [beat] it, 10005 or 10 ^ 15 or 1 × 101.5 billion units of quantity; Petabyte (Pb = petabyte) is called P / beat for short
8、exa/' eksə/ n. It comes from Greek; ξ( h é x) It means six (hexa); Abbreviation E [AI] cosa, 10006 or 10 ^ 18 or 1 × 101.8 billion units of quantity; Exabyte (EB = Exabyte 10 billion bytes), E / Exabyte for short
9、zetta/' ziː tə/ n. It comes from Greek; πτ&# 940;( Hepta means seven; Abbreviation Z [zeta] Ta / zeta, 10007 or 10 ^ 21 or 1 × 102.1 billion billion units of quantity; Zettabyte (ZB = zettabyte 100 billion bytes), referred to as Z / zettabyte
10、yotta/' jɒ tə/ n. From ancient Greek οκτ&# 974;( okt ó) It means eight; Abbreviate y [Yao] it, 10008 or 10 ^ 24 or 1 × 102 billion units of quantity; Yottabyte (Yb = yottabyte), Y / Yao for short
the reason why it is the smallest unit is that we all know that computer information has the most basic binary system composed of 0 and 1. How to make statistics? In fact, one bit of binary number contains one bit of information. For example, the binary number 0101 is four bits. Among them, 8bit is called a byte< At present, the conversion of unit computer data that I come into contact with:
1PB = 1024tb
1TB = 1024gb
1GB = 1024MB
1MB = 1024KB
1KB = 1024b
1b = 8bit
in the data link layer, the frame is larger than the "bit". For example, the 8 bits 0 or 1 are divided into a group. This group is called a frame when the control information 0 or 1 is added. This is a unit. This layer processes the frame
if the control information is added to the frame in the network layer, it is a packet. The network layer processes the packet. Packet is the data unit in TCP / IP protocol communication transmission, It is also called "packet". TCP / IP protocol works on layer 3 (network layer) and layer 4 (transport layer) of OSI model, while frame works on layer 2 (data link layer).
1 byte (b) = 8 bits
< 1 kilobyte (KB) = 1024b
< 1 Megabyte (MB) = 1024 KB < 1 Gigabyte (GB) = 1024 TB (TB) = 1024gb (1024gb) (1024gb) (1024gb) (1024gb) (1024gb) (1024gb) (P > 1 Pb (PB) = 1024gb (P > 1 Pb (EB) = 1024gb (pbpbpbpbpbpbpbpbpb (EB) = 1024pb (EB) = 1024gb (TB) = 1024gb (1024gb) (1024gb (1024gb)) = 1024gb (P > 1 Pb (PB) = 1024gb (PB) = 1024gb (Pb (EB) = 1024ppb (EB) = 1024ppb (EB) = 1024ppb (EB) = 1024ppb (EB) = 1024ppb (EB) = 1024ppb (EB) = 1024ppb (EB) = 1024ppb (EB) = 1024ppb (EB) = 1024ppb (EB) = 1024ppb (EB) = 1024ppb (EB) = 1024ppb (EB) = 1024ppb (EB) = 1024ppb (EB) = 1024ppb (EB) = 1024ppb (EB) = 1024ppb (Pb (PB) as as as as as as as as as as as DB