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

Playstation
PS1
PS2
Sony Playstation

    The leading family of games consoles, from
   Sony Corporation consisting of the original Playstation
   (PS1) and the Playstation 2 (PS2).

   The basic Playstations consist of a small box containing the
   processor and a DVD reader, with video outputs to connect to
   a TV, sockets for two game controllers, and a socket for one
   or two memory cards.  The PS2 also has USB sockets.

   The PS2 can run PS1 software because the PS2's I/O processor
   is the same as the PS1's CPU.

   (http://scea.sony.com/playstation/).

   FAQ
   (http://flex.net/users/cjayc/vgfa/system/sony_psx.txt).

   [Dates?  Features?]

   (2003-07-29)