I feel proud of myself to recognize that this iconic dude is not at a 'computer', rather, a [dumb] terminal! ]Or...?]

Terminals are NOT computers. At least dumb terminals are not. Smart terminals do have logic circuit, but dumb terminals work mostly like televisions, except they have protocols (like when you send a SIGINT signal with CTRL+C, and you are a 80s academic working on his terminal at UC Berkeley, then your UNIX implementation —...