When I was a kid, the "real" computers in movies looked so cool with that 80-column monochrome green text.
My first computer was a VIC-20 it always felt very "toy" to me because of its 22 columns of fat text. Later my C64 was a better 40 columns, but still not the cool 80-column text I'd see on "real" computers in movies and TV.
I recently started playing with the VICE Commodore emulator and I discovered that the Commodore PET had a cool 80-column screen! I was very surprised to see that.
Question: Why did the VIC-20 and C64 only have 22 & 40 columns when the earlier PET had 80 columns?