Xbox past and present

Global gaming market: $65 billion spent in 2012

Xbox: Introduced Nov. 15, 2001

Retail price: $299

Sold: 24 million units

Xbox 360: Introduced Nov. 22, 2005

Price: $299 (core system) or $399

Sold: 76 million units worldwide

Kinect for Xbox: Introduced Nov. 4, 2010. Sets record for fastest-selling consumer electronics device, selling 8 million units in 60 days

Sold: 24 million

Xbox One: Introduced May 21, 2013

Price: Not announced

Availability: End of 2013

Specifications: The heart of the Xbox One system is raw power, with more than 5 billion transistors and 8 gigabytes of RAM. It has a 500-gigabyte hard drive; an eight-core, x86 processor; wireless networking connectivity; three super-speed USB 3.0 ports; and a high-speed Blu-ray disc player.

Source: Microsoft Corp.