The HMRC has only 36 operational
microfiche machines and as these break down frequently, tax officials have been forced to hunt online for rare replacement parts or engineers with the skills to fit them.
(In lieu of normative definitions here is an incomplete list of new developments which have emerged in the last 20 years: news satellites, color television, cable relay television, cassettes, videotape, videotape recorders, video - phones, stereophony, laser techniques, electrostatic reproduction processes, electronic high - speed printing, composing and learning
machines,
microfiches with electronic access, printing by radio, time - sharing computers, data banks.
Such historical information is available from the HM Revenue & Customs however John Thompson, Chief of the HMRC, has conceded that significant delay is being caused due to most of the pre-1970s employment records being held on
microfiche and there being a dwindling number of operational
machines left to access them.