After spending a week in Parker, I was ready to return to Atlanta for the second half of the investigation, which would continue in the lab. In the days before the personal computer, to obtain the statistical results of the questionnaire and other investigation inquiries, I had to enter all my data on punch cards. On the sixth floor of the CDC was an IBM machine known as a card sorter. It operated exclusively on a Yes/No answer system and sorted cards based on where holes had been punched in them. Although the machine was able to process each operation rather rapidly, it required a huge number
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