Computers (and later, digital photography) has changed photography in ways that three decades ago you couldn't imagine.
Back then, you would have two camera bodies (at least) one with kodachrome and one with Pan-x. You had a dozen filters to fit on the ends of the lens, and probably a dozen lenses. Because, what you captured at the moment is what you got in the photograph.
Hundreds of feet of film were shot for a few photographs.
And you shot them all because you never knew what you had in the can until developing.
Of course, there was the fun you could have in the darkroom.
Their magic could be done, by hand, in real time.
With digital, getting the moment is the most important thing. Much of everything else can be done in post production.
Yes and in those old days if you wanted to do work in the lab you had to be an amazing artist - I hadn't realised that some of the legendary photographers like Ansel Adams used to do quite a lot of dark room editing! Photoshop speeds up a lot of those techniques and gives you completely new options too.