Report on an Experimental Computer Output Microfilm Service Center.

COM is a method of printing computer output on microfilm. Technological advances permit computers to process in terms of billionths of a second. But computer output is limited by the speed at which it can be produced in usable form. With the proliferation of computer applications, large amounts of paper reports have been produced, which are often difficult to store, distribute, and use. Researchers and records management specialists sought to develop an alternative to paper -- one which would enable output to keep pace with computer processing speed reduce the bottleneck at the output point, reduce storage space, and aid retrieval. COM has provided one answer to these problems by merging the capabilities of the computer with microfilm technology. A COM system requires a recorder, a film developer, a film duplicator, and a reader. The COM recorder may be connected directly to the computer for on-line operation, or it may be connected to a magnetic tape unit for off-line operation. COM recorders use several methods to form images on the film from the computer-generated data. The most commonly used method is the cathode ray tube system. This system converts the computer-produced digital data into analog signals and forms human readable images on a phosphorescent screen which is then photographed. It should be noted that the COM process does not require that a paper copy be made as is done to produce conventional microforms. COM forms the image directly on photographic film.