WordNet (r) 3.0 (2006):

readout
    n 1: the output of a computer in readable form [syn: readout,
         read-out]
    2: the information displayed or recorded on an electronic device
       [syn: readout, read-out]
    3: an electronic device the displays information is a visual
       form [syn: readout, read-out]

Moby Thesaurus II by Grady Ward, 1.0:

42 Moby Thesaurus words for "readout":
   Flexowriter typewriter, Teleplotter, alphabetical printer,
   barometer, canon, check, criterion, degree, digital graph plotter,
   gauge, graduated scale, hard copy, magnetic recorder,
   magnetic tape, measure, microcards, microfiche, microfilm, model,
   norm, oscillograph recorder, oscilloscope, parameter, pattern,
   printout, punch cards, punched tape, quantity, reader, reading,
   recorder, relay register, rule, scale, standard, tape reader,
   teletypewriter, test, touchstone, type, value, yardstick