TY - JOUR
AU1 - White, William
AU2 - 
AB -  Introduction The idea of storing collections of documents in microscopic (microfilm) form was first published in a letter written by Sir John Herschel to his brother-in-law, John Stewart, on June 11,18531); by the second decade of the invention of photography there were several systems developed to accomplish the goal of mass storage in microphotographic format. Over the next century, many hundreds of microfilm systems were introduced, patented, and applied, but it was not until an automated method of retrieval was innovated that the widespread use of archival micro-imaging became feasible. The first such system was introduced by Emanuel Goldberg in 19272), and thus the two components of the typical system were made available. The same year, John Logic Baird produced television pictures stored on waxy disks similar to the 78 RPM phonograph records of the time. He called the invention Phonovision.3) Thus the two systems which have subsequently come to be so basic to modern records storage -- one based on photography and one based on electromagnetic impulses -- were both in the trial stage before the Second World War. The vast data demands of a worldwide conflict hastened the research and development of both technologies so that 
TI - Image Quality in Analog and Digital Microtechniques
JF - Microform & Digitization Review
DO - 10.1515/mfir.1991.20.1.30
DA - 1991-01-01
UR - https://www.deepdyve.com/lp/de-gruyter/image-quality-in-analog-and-digital-microtechniques-5gsLlP4dNU
SP - 30
VL - 20
IS - 1
DP - DeepDyve
ER -