!!![VAXYYY.SUB]AAAREADME.TXT!     BUILDREAD.COM    NOW    DOES    THIS
     AUTOMATICALLY.


                       Eye Research Institute Submissions


                         coordinated by:  Bob Goldstein


               Bob Goldstein, Daniel P.B. Smith, Rivkah Stabiner
                  Eye Research Institute of Retina Foundation
                              20 Staniford Street
                                Boston, MA 02114
                                 (617) 742-3140


          This  submission  consists  of  3  directories,  APPLE_LASER.DIR,
     HALFTONE.DIR, and RESPONSE.DIR.  They are 3 independant programs.  For
     a one-line summary description of each, see AAAREADME.TXT.

          APPLE_LASER is  a  program  that  takes  grey-scale  images  (the
     programmer  must  provide  his own input routine to get the image into
     memory), and produces an ASCII Postscript  file  that  can  be  copied
     directly to an Apple Laserwriter to print the image.  The program uses
     the IMAGE function in postscript to accomplish this,  and  also  sends
     the  images  in  strips  to  eliminate  memory  overflows  within  the
     laserwriter.

          HALFTONE  also  operates  on  grey-scale  images.   However,   it
     converts  the  image to halftones (1s and 0s) and produces sixel files
     suitable for viewing on VT240s and LA50 printers.  This is  an  update
     of a previous submission.

          RESPONSE is a  program  that  captures  USER  opinion  of  system
     response time.  It does this by asking each user, upon logout, to give
     the system  a  letter  grade  of  A,B,C,D,  or  F.   The  results  are
     accumulated  in  a  file.   Periodically  this  file is analyzed and a
     report is produced.