WordNet (r) 3.0 (2006):

raw data
    n 1: unanalyzed data; data not yet subjected to analysis

The Free On-line Dictionary of Computing (30 December 2018):

data
raw data

    /day't*/ (Or "raw data")
   Numbers, characters, images, or other method of recording,
   in a form which can be assessed by a human or (especially)
   input into a computer, stored and processed there, or
   transmitted on some digital channel.  Computers nearly
   always represent data in binary.

   Data on its own has no meaning, only when interpreted by some
   kind of data processing system does it take on meaning and
   become information.

   For example, the binary data 01110101 might represent the integer
   117 or the ASCII lower case U character or the blue component of
   a pixel in some video.  Which of these it represents is
   determined by the way it is processed (added, printed, displayed,
   etc.).  Even these numbers, characters or pixels however are still
   not really information until their context is known, e.g. my bank
   balance is £117, there are two Us in "vacuum", you have blue eyes.

   (2007-09-10)