I would like some examples of modern day equipment that would equate with the 'R' in Von Neumann architecture.
I am referring to Section 2.6 on page 3 of the PDF version of the "First Draft of a Report on the EDVAC".
R is any device which humans interact with to provide machine input or for the machine to provide human readable output.
In section 1.2, your pdf notes the EDVAC could use:
In modern computing we have monitors, printers, keyboards, mice, Kinect, and numerous other ways of sensing input or providing output.