Abstract

Once that the number of Wyandotte-ASTM punched cards indexing spectral absorption data exceeded several thousand, it was necessary to use a more rapid method in order to obtain a reasonable speed of retrieval. A preclassification of the total deck is described which needs no other special equipment than a card sorting machine. With this method 2,836 cards must be handled in the most unfavorable case instead of the 42,000 representing the authors' collection.

Application of Punched Card Equipment to the Analysis of Complex Spectra

J. V. Atanasoff and A. E. Brandt
J. Opt. Soc. Am. 26(2) 83-88 (1936)

Spectroscopy Punched Cards Available

J. Opt. Soc. Am. 47(7) 672-672 (1957)

Spectroscopy from the Point of View of Communication Theory. Part IV. Automatic Recording of Infrared Spectra on Punched Cards

Gilbert W. King, Elaine H. Blanton, and Joanna Frawley
J. Opt. Soc. Am. 44(5) 397-402 (1954)

Method of Colorimetric Integration Using Punched-Card Accounting Machines*

David L. MacAdam
J. Opt. Soc. Am. 40(3) 138-140 (1950)

Use of a Digital Readout Unit in Converting Spectrophotometric Data to Color Coordinates

Fred W. Billmeyer
J. Opt. Soc. Am. 50(2) 137-143 (1960)