Sources for The Mathematical Centre Paper Tapes

These are the programs used for decoding and conversion. The 7 hole tapes use FlexoWriter code. A readable version of these tapes was produced using the rf program written by Edo Dooijes (Computer Museum, University of Amsterdam). X1 hand code was converted by the program x1hand, written by Geert Rolf. The 5 hole tapes were made readable as a decimal dump in a text file. The length of .5 and .7 files are always a multiple of 512 bytes due to the nature of the operating system used at the DP-11. These files are null padded.