Cov keyboards txawj ntse ua kom muaj kev tswj hwm kev khaws cia hauv ntau qhov chaw, txo cov nqi SAM thiab muab kev ua kom muaj peev xwm thiab ntsuas tau rau ntau qhov chaw cia khoom sib txuas (SANs). Txawm li cas los xij, cov keyboards ntse tseem nyob rau theem evolutionary thiab tej zaum yuav tsis zoo tagnrho rau cov lag luam me, lossis lawv yuav tsis tuaj yeem hloov kho rau cov kev hloov hauv SANs raws li qhov xav tau.
Hauv qee qhov SANs sophisticated, cov keyboards ntse yog cov khoom siv thev naus laus zis tsis ntev los no, tam sim no tshaj li kaum xyoo. Cov keyboards ntse tshaj plaws tau tshwm sim hauv xov tooj hauv xyoo 1980s rau kev siv xov tooj tsis siv neeg. Tom qab ntawd, cov ntawv thov hloov pauv zoo sib xws tau tshwm sim hauv lwm qhov kev sib txuas lus, suav nrog kev hloov pauv hauv Internet hauv 1990s.
