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Grolier Multimedia Encyclopedia 1995
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z22
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Graphics Interchange Format
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1994-08-24
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4KB
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454x280
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4-bit (3 colors)
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OCR:
1987 46.29% 27.3% 48.0% 65.3% 1982 42.9% 25.7% 42.8% 63.6% 1977 41.7% 25.8% 40.7% 62.4% 1972 40.9% 26.3% 39.6% 59.9% 1963 39.5% 25.1% 38.2% 57.8% 1954 36.5% 24.6% 35.1% 52.3% 1947 36.0% 26.8% 35.8% 47.7% *By product differentiation-the degree to which product is distinct from similar products. Source: U.S. Bureau of the Census, Concentration Ratios in Manufacturing, 1987 Census of Manufacturers.
