It's on phones, and it's also used in TV and media, but where does the sound actually originate? On phones, iPhones especially, taking a picture or a screenshot will result in that sort of "click" noise.
Where does that noise come from?
At one point in history was there actually a camera that sounded like that?
I ask this because I own several SLRs from the 50s, 60s, and the late 70s, and none of them make that noise.