OCR/ICR
The most well known use case for OCR is conversion of printed paper documents into machine-readable text documents. Once a scanned document is passed through OCR, the text of the document can be edited with word processors like Microsoft Word or Google Docs. Before OCR technology was present, the only option to digitise printed paper documents was to manually re-typing the text. Not only was this time consuming but also came with inaccuracy and typing errors.