I have a tiny camera built into both my iMac and my laptop, these cameras give a decent picture【

of course, the object is just a couple of feet away from the lens】 and full motion (no skipping)【

just shooting and display in the same machine without transmission and recording】.
Even on the midrange ones, the picture quality isn't that good and the video is stop motion (it skips【

on the screen of the monitor? or when replayed from the DVR?】)【

due to the loss of transmission and DVR recordign】 most of the time.
This is why.