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control panel selections. The machine operated at the rate of 75 cards a minute. The feed hopper had a capacity of 800 cards, and the stacker had a capacity of 1,000 cards.
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alphabetic interpreter, announced in 1937. It could process 60 cards per minute. The Type 552 was withdrawn in
December 1957.
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and printed it across the top of each card. The 550 was introduced in 1930.
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numerical interpreter was the first commercial machine made by
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Information to be printed could be placed in any sequence via
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Alphabetic and numeric characters could be printed by the
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http://www.columbia.edu/acis/history/interpreter.html
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22:Punched card phone bill with interpreted data
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141:. You can help Knowledge (XXG) by
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193:IBM punched card hardware
188:IBM unit record equipment
34:that read numerical data
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114:Alphabetic Interpreter
69:"IBM Archive: IBM 550"
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107:Unit record equipment
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75:on January 19, 2005.
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71:. Archived from
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36:punched on cards
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143:expanding it
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182:Categories
56:References
43:plugboard
101:See also
50:Type 552
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28:IBM 550
133:This
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26:The
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