Selected article

A punched card, punch card, IBM card, or Hollerith card is a piece of stiff paper that contains digital information represented by the presence or absence of holes in predefined positions. Now an obsolete recording medium, punched cards were widely used throughout the 19th century for controlling textile looms and in the late 19th and early 20th century for operating fairground organs and related instruments. They were used through the 20th century in unit record machines for input, processing, and data storage. Early digital computers used punched cards, often prepared using keypunch machines, as the primary medium for input of both computer programs and data. Some voting machines use punched cards.

Selected biography

Ronald Paul "Ron" Fedkiw (/ˈfɛdkoʊ/; born February 27, 1968) is an associate professor in the Stanford University department of computer science and a leading researcher in the field of computer graphics, focusing on topics relating to physically based simulation of natural phenomena and level sets. His techniques have been employed in over twenty motion pictures. He has earned recognition at the 80th Academy Awards as well as from the National Academy for Science.

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