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.
To keep the block generation time equal to ten minutes on average, both Bitcoin and Bitcoin Cash use an algorithm adjusting the mining difficulty parameter. This algorithm is called the difficulty adjustment algorithm (DAA). Originally, both Bitcoin and Bitcoin Cash used the same difficulty adjustment algorithm, adjusting the mining difficulty parameter every 2016 blocks. Since 1 August 2017, Bitcoin Cash also used an addition to the DAA, called an Emergency Difficulty Adjustment (EDA) algorithm. EDA was used alongside the original DAA and it was designed to decrease the mining difficulty of Bitcoin Cash by 20%, if the time difference between 6 successive blocks was greater than 12 hours.
While still nascent, there’s a particular opportunity for African startups to exchange knowledge with Indian investors and entrepreneurs about scaling the growth of local startups. — Yinka Adegoke, Quartz Africa, "The Indian connection that could fuel African startups," 21 Aug. 2019 Most Alabama high schools already purchase an annual subscription to HUDL, a video system that allows coaches to exchange game tape, make highlight videos for recruiting purposes and make cut-ups to aid in developing scouting reports. — Josh Bean | Jbean@al.com, al, "Rewinding Year 1 of instant replay for Alabama HS football," 16 Aug. 2019 Prepaid2Cash allows users to exchange branded prepaid cards and gift cards for cash using their smartphones. — William Thornton | Wthornton@al.com, al.com, "California tech company relocating to Alabama," 2 July 2019 In addition, Facebook’s Libra is designed to be a place to hold users’ funds, as well as allow people to exchange money. — Nir Kshetri, Quartz India, "Facebook’s cryptocurrency, Libra, could be a boon for developing nations like India," 26 June 2019 In addition, Facebook’s Libra is designed to be a place to hold users’ funds, as well as allow people to exchange money. — Nir Kshetri, The Conversation, "Facebook’s Libra may be quite attractive in developing countries," 25 June 2019 Fortunately, there is a more robust way to exchange quantum information—via the use of another property of quantum systems, called entanglement. — Anil Ananthaswamy, Scientific American, "The Quantum Internet Is Emerging, One Experiment at a Time," 19 June 2019 Another collects images from Thai soap operas; another shows young men exchanging ideas, a third shows how the city comes to a halt as the national anthem is played nightly. — Roger Catlin, Smithsonian, "This Performance Art Piece Is Being Served Up with Tasty, Warm Bowls of Curry," 13 June 2019 Authorities said Bush and another shopper who was armed also exchanged gunfire in the parking lot of the Kroger. — Billy Kobin, The Courier-Journal, "Kroger shooting suspect is now competent to stand trial," 27 Oct. 2018
Is Bitcoin legal in the US
With Exchange Server 2010, Microsoft introduced the concept of the Database Availability Group (DAG). A DAG contains Mailbox servers that become members of the DAG. Once a Mailbox server is a member of a DAG, the Mailbox Databases on that server can be copied to other members of the DAG. When a Mailbox server is added to a DAG, the Failover Clustering Windows role is installed on the server and all required clustering resources are created.