In the 1950s, legendary behaviorist B.F. Skinner debuted his version of a “teaching machine,” based on the 1924 invention of Ohio State University psychology professor Sidney Pressey. The contraption was loaded with a piece of paper with questions, and students pressed keys indicating the correct answer, at which point another question would appear. Both Pressey and Skinner ran into similar problems, though, failing to implement the technology in schools. Educators weren’t convinced of the machine’s benefit, which prioritized individually paced learning not conducive to students of the same age moving through a grade level at the same time.
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2002年成立以来，数盾科技一直致力于国产密码技术研究和信息安全产品研发，然而这些年，朱云却有些焦虑。“量子计算技术发展得太快了，在处理大规模数据和复杂运算时显现出极大优势，这对现有密码体系造成了巨大冲击。”朱云说。