Pixel fonts in terminals

For years I’ve heard extensive-terminal-users proselytise about pixel fonts. I’d never paid much attention because what is this, the 1800s? But I’ve been hankering for a bit of basicness in my computering recently so I thought I’d give them a pop. What is it “fonts”? Back in the olden days, when computers mainly did text, screens were divided into rows and columns of characters, and characters…