microfiche vs transcription

microfiche

verb
  • To convert (documents) to microfiche format. 

noun
  • A sheet of microfilm, six by four inches, holding several hundred reduced images of document pages, read using a microfiche reader or microfilm reader. 

  • A device used to magnify and read these sheets. 

transcription

noun
  • A representation of speech sounds as phonetic symbols. 

  • The synthesis of RNA under the direction of DNA. 

  • An adaptation of a composition. 

  • The act or process of transcribing. 

  • A recorded radio or television programme. 

How often have the words microfiche and transcription occurred in a corpus of books? (source: Google Ngram Viewer )