This is a disk and memory diagnostic.  STU, the System Test Utility.

  This is a shareware program.  It tests all memory on your system that
  is not currently in use.  It will test up to 7 disk drives at one time.

  The unregstered version will no do all the tests.

 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                  445     800  55.6% -lh5- 04a6 Apr 12  1997 Greetings
[generic]                 6431   11280  57.0% -lh5- 82f5 Dec  1  1996 Manual
[generic]                  851    1771  48.1% -lh5- 118f Apr 12  1997 Read.Me
[generic]                   62      62 100.0% -lh0- 7656 Apr 12  1997 S/Startup-Sequence
[generic]                21674   37112  58.4% -lh5- 2fcb Apr 12  1997 Stu
[generic]                20367   61403  33.2% -lh5- e0a6 Apr 12  1997 Stu.Doc
[generic]                 6432   11284  57.0% -lh5- 6a83 Dec  1  1996 Welcome
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         7 files   56262  123712  45.5%            Apr 16  1997