Microfilm is an informationmedium which in the last years has been met with a great interest owing to its ability of high paching density. It is important to be aware ofttwo things about microfilm:- microfilm can many times be seen as a complement to other storage media rather than a substitute- microfilm is not suitable for all applications under all conditionsTwo different microfilm techniques:1) traditional microfilming and2) computer output microfilmThe last method means the converting of the digitally stored computer-information and human-readable text on microfilm.A COM-system user can either bye his own equipment or trust to a service-bureau