How does push-button start work on cars?

Push-button start is standard on most modern cars, trucks and SUVs today. How does it work and is it better than ignition keys?
wjactv

Pa lawmakers push for alarm buttons in schools to enhance safety

Democratic Pennsylvania lawmakers and other school safety advocates gathered in Harrisburg Monday to pass house bill 1974. This bill which would require Pennsylvania schools to add push buttons on ...
The Verge

I want to push the big red AC buttons on Genki’s USB-C packed power strip

Genki’s Moonbase is an upgraded power strip with three spacious AC outlets and four USB-C ports delivering up to 240W. Genki’s Moonbase is an upgraded power strip with three spacious AC outlets and ...
WKRN-TV

Tennessee moms push to mandate wearable panic buttons in schools

NASHVILLE, Tenn. (WKRN) — Two Tennessee moms and co-founders of the nonprofit, Make Our Schools Safe (MOSS) TN hope lawmakers pass a bill this upcoming session mandating wearable panic buttons for ...