data set

/D EY1 T AH0 S EH0 T/
noun
  1. 1

    A file of related records on a computer-readable medium such as disk, especially one on a mainframe computer; a dataset.

  2. 2

    A modem (that connects a device such as a teletype to an ordinary telephone).

  3. 3

    A set of data to be analyzed.

Source: https://en.wiktionary.org/wiki/data%20set