You are looking on one 5 1/2" by 8 1/2" 93 Page softcover copy of "PRINCIPLES OF AUTOMATIC DATA PROCESSING" by Data Processing Management Association,printed in1965.This item is in good condition with a little bit of soiling of the covers, some pages are underlined with pencil, all pages are clean and tight.Chapters include:what is data processing? development of data processing methods, punched card systems, elements of an electronic data processing system, number systems, the central procesing units. This book has some illustrations,and much, much more. Thanks for Looking.A1***Powered by eCRATER
