I disagree because the command line is -- in the sense discussed here -- a very bad GUI. Does a computer "work" because double-clicking an icon launches an appl

I disagree because the command line is -- in the sense discussed here -- a very bad GUI. Does a computer "work" because double-clicking an icon launches an application or because typing a certain set of magic characters in a shell launches a program? Follow-up article: I raised my kids flipping switches on a front panel and they love it!