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- 68,569.13-624.61 (-0.90%)截至 2024年5月27日, 週一 上午 7:17 EDT · (USD)。(報價延遲20分鐘)。市場開市中。
- 昨收68,476.77開盤68,476.77委買價不適用 x 不適用委賣價不適用 x 不適用
- 今日價格區間68,360.92 - 69,202.3852週價格區間24,797.17 - 73,750.07成交量18.6B平均成交量37.81B
- 市值1351.10 億本益比 (最近12個月)不適用營運報告/法說會日期不適用除權除息日-
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Bitcoin (abbreviation: BTC; sign: ) is the first decentralized cryptocurrency. Nodes in the peer-to-peer bitcoin network verify transactions through cryptography and record them in a public distributed ledger, called a blockchain, without central oversight. Consensus between nodes is achieved using a computationally intensive process based on proof of work, called mining, that guarantees the ...
United States dollar. The United States dollar ( symbol: $; currency code: USD; also abbreviated US$ to distinguish it from other dollar-denominated currencies; referred to as the dollar, U.S. dollar, American dollar, or colloquially buck) is the official currency of the United States and several other countries.
Cryptocurrency has undergone several periods of growth and retraction, including several bubbles and market crashes, such as in 2011, 2013–2014/15, 2017–2018 and 2021–2023. On 6 August 2014, the UK announced its Treasury had commissioned a study of cryptocurrencies, and what role, if any, they could play in the UK economy. . The study was also to report on whether regulation should be ...
- Prefixes
- In Data Communications
- Multimedia
- Encoding Bit Rate
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When quantifying large or small bit rates, SI prefixes (also known as metric prefixesor decimal prefixes) are used, thus: Binary prefixes are sometimes used for bit rates.The International Standard (IEC 80000-13) specifies different abbreviations for binary and decimal (SI) prefixes (e.g., 1 KiB/s = 1024 B/s = 8192 bit/s, and 1 MiB/s = 1024 KiB/s).
Gross bit rate
In digital communication systems, the physical layer gross bitrate, raw bitrate, data signaling rate, gross data transfer rate or uncoded transmission rate (sometimes written as a variable Rb or fb) is the total number of physically transferred bits per second over a communication link, including useful data as well as protocol overhead. In case of serial communications, the gross bit rate is related to the bit transmission time T b {\displaystyle T_{b}} as: 1. R b = 1 T b , {\displaystyle R_...
Information rate
The physical layer net bitrate, information rate, useful bit rate, payload rate, net data transfer rate, coded transmission rate, effective data rate or wire speed (informal language) of a digital communication channel is the capacity excluding the physical layer protocol overhead, for example time division multiplex (TDM) framing bits, redundant forward error correction (FEC) codes, equalizer training symbols and other channel coding. Error-correcting codes are common especially in wireless...
Network throughput
The term throughput, essentially the same thing as digital bandwidth consumption, denotes the achieved average useful bit rate in a computer network over a logical or physical communication link or through a network node, typically measured at a reference point above the data link layer. This implies that the throughput often excludes data link layer protocol overhead. The throughput is affected by the traffic load from the data source in question, as well as from other sources sharing the sa...
In digital multimedia, bitrate represents the amount of information, or detail, that is stored per unit of time of a recording. The bitrate depends on several factors: 1. The original material may be sampled at different frequencies. 2. The samples may use different numbers of bits. 3. The data may be encoded by different schemes. 4. The informatio...
In digital multimedia, bit rate refers to the number of bits used per second to represent a continuous medium such as audio or video after source coding (data compression). The encoding bit rate of a multimedia file is its size in bytesdivided by the playback time of the recording (in seconds), multiplied by eight. For realtime streaming multimedia...
Andreas M. Antonopoulos (born 1972 in London) is a British-Greek [2] [3] Bitcoin advocate, tech entrepreneur, and author. He is a host on the Speaking of Bitcoin podcast [4] (formerly called Let's Talk Bitcoin! [5]) and a teaching fellow for the M.Sc. Digital Currencies at the University of Nicosia. [6]
El Salvador became the first country in the world to use bitcoin as legal tender, after having been adopted as such by the Legislative Assembly of El Salvador in 2021. It has been promoted by Nayib Bukele, the president of El Salvador, who claimed that it would improve the economy by making banking easier for Salvadorans, and that it would encourage foreign investment.
Satoshi Nakamoto is the name used by the presumed pseudonymous[1][2][3][4] person or persons who developed Bitcoin, authored the Bitcoin white paper, and created and deployed Bitcoin's original reference implementation.[5] As part of the implementation, Nakamoto also devised the first blockchain database.[6] Nakamoto was active in the ...
