Video narration
Jab aap phone par button tap karte hain, to use kaise pata chalta hai ki ungli ne theek kahan chhua? Jawaab dabav nahi, screen ke electrical field mein badlav hai. Ungli chhute hi field thoda badal jaata hai. Touch controller yeh badlav pakadkar jagah nikalta hai. Phir wahi jaankari processor aur app tak pahunchti hai, jahan se tap ya scroll ka kaam turant shuru ho jaata hai. Yaani dabav nahi, field ka badlav jagah pehchankar kaam shuru karaata hai.