单词	petaflop
释义	petaflop noun peta·​flop ˈpe-tə-ˌfläp  plural petaflops : a unit of measure for the calculating speed of a computer equal to one quadrillion floating-point operations per second The high-performance computing goal, known as a petaflop—one thousand trillion calculations per second—has long been viewed as a crucial milestone by military, technical and scientific organizations in the United States, as well as a growing group including Japan, China and the European Union. John Markoff Word History Etymology peta- + flop entry 4 First Known Use 1990, in the meaning defined above
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