Google to unveil new Nexus tablets at July 24 event?

The tech world is abuzz with speculation that Google Inc could introduce the next generation of its Nexus tablets on July 24.

The Internet search giant sent out invites to the San Francisco event last week.

Android, the world's leading mobile operating system, powers Google's line-up of Nexus tablets. The devices have emerged as a popular alternative to Apple Inc's iPad since Google released the first Nexus tablet with a 7-inch display screen in July 2012.

It has become customary for top-selling devices to be upgraded at least once a year, fueling speculation that is what Google is about to do with the Nexus on Wednesday.

Sundar Pichai, who oversees Google's Android and Chrome operating systems, will be hosting the event.