Congratulations Sony with your 70th Birthday! So as
Celebration we are posing here one special product from Sony:
The Sony PlayStation!
Yes the first PlayStation Sony has released. This model is the first model: SCPH-1000 with it's box. it had an Direct Out AV connection and was later removed. Later models dropped the parallel port first, and then the serial port.
Later models dropped the parallel port first, and
then the serial port. as you can see below:
SCPH-5501 (middle) and
The SCPH-900x revision saw the removal of the Parallel I/O port while the RCA jacks were removed in the SCPH-550x revision.