CAPCHA:Completely Automated Public Turing test to tell Computers and Humans Apart
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Icons: the greatest person of the 20th century
https://neowalter.home.blog/blog-feed/blog/2019-2020/
USB: universal serial bus
win+up/down/left/right
1 – 0.9 = 0.09999999999999998
https://github.com/neowalter/blockchain-apps/blob/master/my-basic-sample.bna
Neo Walter's website 