The abstractions that I thought so simple ("See? You can make a flip-flop out of two NAND gates. Now we'll draw a square around that and treat it as a black-box."), were foreign to them. They seemed to comprehend that they could construce a flip-flop, but when I tried to use lots of flip-flops, they had trouble.

April 23, 2010
URL:http://www.drdobbs.com/architecture-and-design/computer-science-for-international-relat/228701006

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