text: My father writes: "Well, the guy leaning up against the tape drives of a Sperry-UNIVAC Model 70, is me - circa 1975 or so. Each drive was about the size of a refrigerator, and we had 6 of them. (The company published 27 magazines and needed a lot of tape storage.) These were high quality drives and could store 150 mb or so on a 2400’ reel. Cheap ones could store only 10 mb. I’m leaning on drive number 1 – yet there’s a drive behind me. Why? In those days, numbering schemes began with 0."