From the article: "we’ve had graphical user interfaces for mere four centuries."
What's the graphical user interface from around 1600? Or did he mean "four decades"?
The oldest GUI of which I am aware is General Railway Signal's NX system, first installed in 1937.[1] These used engraved letters in white on black, with a sans-serif font with fixed line width. There were earlier control boards, but this was the first system which had active systems to assist the operator in routing trains. In previous systems, operators set signals and threw switches. With NX, operators selected a path for an entering train, and lights lit up at all the places it could exit. Pressing an exit light set all the necessary switches and signals. All this was interlocked against conflicts for safety.