According to ESRI

"To add a table of x,y coordinates to your map, the table must contain two fields: one for the x-coordinate and one for the y-coordinate. The values in the fields may represent any coordinate system and units such as latitude and longitude or meters."

I am getting confused here for example on GPS what is X,Y and are they different than Latitude,Longitude?

According to Esri:

"To add a table of x,y coordinates to your map, the table must contain two fields: one for the x-coordinate and one for the y-coordinate. The values in the fields may represent any coordinate system and units such as latitude and longitude or meters."

I am getting confused here.

For example, on GPS what is X,Y and are they different than Latitude,Longitude?