Google will sell a small tablet computer bearing its brand in a challenge to Amazon's Kindle Fire.
The Nexus 7 is designed specifically for Google Play, the online store that sells films, music, books, apps and other content - the things Amazon also sells for its tablet computer.
Both tablets have screens that measure seven inches diagonally, smaller than the nearly 10 inches on Apple's popular iPad. The Nexus 7 will also be light - at about 0.75 pound, compared with the Kindle Fire's 0.9 pound. The iPad weighs 1.44 pounds.
The Nexus 7 will ship in mid-July starting at 199 dollars (£128) - the same price as the Kindle Fire. By contrast, iPads start at 499 dollars (£320). Customers can start ordering it through Google today, initially in the United States, Canada and Australia.
The Nexus 7 has more features than the Kindle, including a front-facing camera. It will run the next version of Google's Android operating system, called Jelly Bean.
Google also announced a home entertainment device called Nexus Q. It sends content from your personal collection or YouTube to your existing TV and speaker systems. You control it through a separate Android phone or tablet.
The Nexus Q, which Google is calling the world's first "social streaming device," will be available in July in the US initially and sell for 299 dollars (£192).
Google made the announcements during a keynote speech to open its annual conference in San Francisco for computer programmers.
Google also demonstrated its futuristic, Internet-connected glasses by having parachutists jump out of a blimp hovering about 7,000 feet above San Francisco. The audience got live video feeds from their glasses as they descended to land on the roof of the Moscone Centre, the location of the conference.
Google is making prototypes of the device, known as Project Glass, available to test. They can only be purchased - for 1,500 dollars (£963) - at the conference this week, for delivery early next year. Google is also giving all 6,000 delegates a Nexus 7, Nexus Q and Google Nexus phone for free.