I am pretty sure that one of the guys in my programming team of the time wrote an autocomplete component that ran on a Vax VMS system in 1991. It was incorporat

I am pretty sure that one of the guys in my programming team of the time wrote an autocomplete component that ran on a Vax VMS system in 1991. It was incorporated into a great many programs. OK, no "gestures" but we only had keyboards then.