Sony said Tuesday it has sold more than 2.1 million PlayStation 4 consoles after less than three weeks on the market, as it battles Microsoft and Nintendo for supremacy in the lucrative gaming sector.

The eagerly-awaited PlayStation sold more than one million units in just one day after its November 15 debut in North America and Sony said Tuesday it was on track to hit a worldwide target of 5.0 million units by March.

BlackBerry's new chief executive cast off persistent talk of the smartphone maker's demise, vowing on Monday that the company would pick itself back up and was "here to stay."

"Reports of our death are greatly exaggerated," John Chen, who was appointed interim chief executive last month, said in an open letter to customers.

It was a year for "twerking," "selfies," and "cronuts" in Internet searching, right up there with Hollywood, pop and reality stars.

Web users also were interested in subjects ranging from the "Zombie Apocalypse" to the troubled rollout of Obamacare, according to an annual review by Yahoo released Tuesday.

Amazon CEO Jeff Bezos revealed Sunday that his company is looking to the future with plans to use "octocopter" mini-drones to fly small packages to consumers in just 30 minutes.

The U.S. retail giant's ambitious project still requires additional safety testing and federal approval, but Bezos estimated that Amazon "Prime Air" would be up and running within four to five years.

Twitter just issued its IPO but a lingering question is how the popular worldwide microblog company will turn a profit. One U.S. company thinks it has found one way to help Twitter, and itself, make money.

Wayin has partnered up with the Denver Broncos football team to project tweeted photos and tweets from fans onto the Sports Authority Field at Mile High's Thundervision 2, the stadium's marquee 40-foot (12-meter) high, by 220-foot (67-meter) wide video scoreboard.

Apple wants to rein in the pay and power of a monitor hired to watch over the company as punishment for conviction in an e-book price-fixing case.

In court paperwork available online Friday, Apple objected to being billed more than $1,000 an hour for the services of former U.S. prosecutor Michael Bromwich.

A smartphone app designed to give early warning of earthquakes could be ready as early as next year, according to scientists at the World Science Forum in Rio de Janeiro.

Researchers from the University of California showed off the project this week at a conference on how to use technology to ward off natural disasters.

The Chinese government has declared victory in its recent campaign to clean up what it considers rumors, negativity and unruliness from online discourse, while critics say the moves have suppressed criticism of the government and ruling Communist Party.

Beijing launched the campaign this summer, arresting dozens of people for spreading rumors, creating new penalties for people who post libelous information and calling in the country's top bloggers for talks urging them to guard the national interest and uphold social order. At the same time, government agencies at all levels have boosted their online presence to control the message in cyberspace.

A privacy watchdog said Thursday that Google has been breaching Dutch law on personal data protection since it introduced a new privacy policy last year.

Jacob Kohnstamm, chairman of the College for the Protection of Personal Data, said that Google's combining of data from different services, including surfing multiple websites, to tailor ads and personalize services like YouTube "spins an invisible web of our personal information, without our permission, and that is outlawed."

America's plain old telephone network is rapidly being overtaken by new technology, putting U.S. regulators in a quandary over how to manage the final stages of transformation.

Though the timing remains unclear, the impact of change and what it means for roughly 100 million Americans who remain reliant on the dated but still-functional system of copper wires and switching stations is up for debate.