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

Page Mode Dynamic Random Access Memory
Page Mode DRAM

    A technique used to support faster
   sequential access to DRAM by allowing any number of accesses
   to the currently open row to be made after supplying the row
   address just once.

   The RAS signal is kept active, and with each falling edge
   of the CAS\ signal a new column address can be supplied
   and the corresponding bits can be accessed.  This is faster
   than a full RAS-CAS cycle because only the shorter Column
   Access Time needs to be obeyed.

   Note that strictly speaking such a DRAM is not a true random
   access memory since accesses to the open row are faster than
   to other locations.

   EDO RAM is replacing Page Mode DRAM in many new
   microcomputers.

   [Is "Fast Page Mode" the same as "Page Mode"?]

   (1996-10-06)