Microsoft's corporate vice president Phil Harrison - a former director at Sony - described the new Xbox One as "built for the future" as the eagerly awaited console hit the market.
Xbox One is a complete, all-in-one system which has the best games, the best online service in Xbox Live, the best entertainment experiences and is built for the future.
With the strongest line-up of games we've ever seen for a new console, pre-orders from fans across the UK are at unprecedented levels...
The games industry is evolving and growing fast, and we are proud to have so many British developers and creators helping to drive the new Xbox One era.
More top news
Tony Blair could be made to stand trial for war crimes over the invasion of Iraq, Labour leadership frontrunner Jeremy Corbyn has said.
The number of fines handed out to hauliers found carrying illegal immigrants into the UK has more than tripled in the last three years.
The controversial extraction method has given some an economic lifeline but others say it has ruined the tranquility of the area.