Android Jelly Bean is the name of the legacy version of Google's mobile operating system. Jelly Bean debuted as Android 4.1 on the Nexus 7 tablet in June 2012. Jelly Bean, or Android 4.1 through 4.3, is an updated expansion of Google’s Android 4.0.
Jelly Bean offers smooth graphics, smarter text predictions, improved photos, improved accessibility features, smarter widgets and useful notifications.
Google’s major Android updates are code named after desserts in alphabetical order. Prior to Jelly Bean, Google released the Cupcake, Donut, Éclair, Froyo, Gingerbread, Honeycomb and Ice Cream Sandwich. Android updates that followed Jelly Bean are code named Kit Kat and Lollipop.