Which mobile operating system is developed in a consortium that includes the Open Handset Alliance?

The mobile operating system developed in a consortium that includes the Open Handset Alliance is Android. This group was formed in 2007, led by Google, with the aim of promoting open standards for mobile devices. Android is built on the Linux kernel and is designed primarily for touchscreen mobile devices such as smartphones and tablets.

The importance of the Open Handset Alliance lies in its collaborative approach to evolving technologies, supporting developers, manufacturers, and wireless operators in creating innovative mobile experiences. By fostering an open-source platform, Android allows developers to create a wide range of applications, contributing to its extensive app ecosystem.

In contrast, the other operating systems listed – iOS, Windows Phone, and BlackBerry OS – do not have their development driven by the Open Handset Alliance. iOS is developed solely by Apple, Windows Phone was developed by Microsoft and is no longer actively supported, and BlackBerry OS was created by Research In Motion (now known as BlackBerry Limited). Each of these systems has its unique features and development teams, but none were part of the collaborative initiative represented by the Open Handset Alliance as Android is.