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Bitmain's first product was the Antminer S1 which is an ASIC bitcoin miner making 180 gigahashes per second (GH/s) while using 80–200 watts of power. [8] Bitmain as of 2018 had 11 mining farms operating in China. [7] Bitmain was involved in the 2018 Bitcoin Cash split, siding with Bitcoin Cash ABC alongside Roger Ver. [9]
An application-specific integrated circuit (ASIC / ˈ eɪ s ɪ k /) is an integrated circuit (IC) chip customized for a particular use, rather than intended for general-purpose use, such as a chip designed to run in a digital voice recorder or a high-efficiency video codec. [1]
The S-record format was created in the mid-1970s for the Motorola 6800 processor. Software development tools for that and other embedded processors would make executable code and data in the S-record format. PROM programmers would then read the S-record format and "burn" the data into the PROMs or EPROMs used in the embedded system.
[2] In the social sciences , a result may be considered statistically significant if its confidence level is of the order of a two-sigma effect (95%), while in particle physics and astrophysics , there is a convention of requiring statistical significance of a five-sigma effect (99.99994% confidence) to qualify as a discovery .
Assuming that the cash flow calculated does not include the investment made in the project, a profitability index of 1 indicates break-even. Any value lower than one would indicate that the project's present value is less than the initial investment. As the value of the profitability index increases, so does the financial attractiveness of the ...
Artisanal mining can include activities as simple as panning for gold in rivers, to as complex as development of underground workings and small-scale processing plants. . Miners use a variety of methods to locate minerals, including historical knowledge, the observation of other minerals or rocks, or technology such as mineral detectors and audio-based reflection seismology surve
The Solothurn S18-1000 20 mm was a German anti-tank rifle designed and manufactured in Switzerland and used during the Second World War.It was a variant of the earlier S-18/100 with modifications for a higher muzzle velocity, as well as a larger cartridge size.
The noisy miner has a mating display flight song: a soft warble of low-frequency notes given during short, undulating flights by the male, and responded to by the female with a low-frequency whistle. [18] The noisy miner is found in open woodland habitats, where it is an advantage to call from the air, so as to overcome sound attenuation. [22]