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Chapter 03 · Data Format Longevity
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The 80-Column Card Outlasted Every Successor
Fifty-six years of continuous production — a record no successor format has matched.
YEARS OF ACTIVE USE
60
45
30
15
0
56 years
41 yr
23 yr
27 yr
80-Column Card
Magnetic Tape
Floppy Disk
Optical Disc
1928 – 1984
1951 – 1992
1976 – 1999
1985 – 2012
80 COL × 12 ROW