Data from smartphones and Twitter can accurately show the size of a crowd, helping first responders in an emergency, a study on Wednesday said.

Scientists at England's University of Warwick devised a computer model based on data from Twitter and from phone companies in Milan, northern Italy.

The chief of vanishing-image service Snapchat on Tuesday said the company has a plan for going public with an offering of stock but did not reveal when it might happen.

"We need to IPO, we have a plan to do that,” chief executive officer Evan Spiegel said on-stage at a Code Conference in California when asked about the potential for an initial public offering of stock.

Apple innovator Jonathan Ive says he's been promoted to the company's chief design officer, making him one of the most powerful people in the world's most valuable company.

Ive, who as a lead designer with the company helped conceive the iconic Apple looks of products like the iPod, iPad and Apple Watch, confirmed the promotion in an interview published Tuesday in the Daily Telegraph.

Samsung Group announced Tuesday the merger of two major affiliates, as the South Korean business giant accelerates restructuring efforts ahead of a generational power transfer within the founding Lee family.

The all stock deal, approved by the boards of both companies would see Samsung's de facto holding company Cheil Industries -- which has interests from fashion to theme parks -- acquire general trade and construction affiliate Samsung C&T.

The United Nations on Monday criticized the tiny Pacific nation of Nauru for blocking access to the Internet, including Facebook, and urged it to reverse a clampdown on freedom of speech.

Nauru curbed Internet access in the nation of 10,000 people last month, saying it was barring pornography, although social media sites such as Facebook were caught in the dragnet.

Google has filed a patent for toys that pay attention to who is in a room and can interact with other media devices.

The U.S. Patent and Trademark Office shared diagrams Thursday depicting what resembled rabbit and bear toys with microphones in their ears, cameras in their eyes, speakers in their mouths and motors in their necks.

As PayPal prepares to split from its corporate parent, its new chief executive is promising to expand the popular online payment system, adding a variety of services for consumers to use when shopping on their phones or in traditional stores.

PayPal will be spinning off from parent company eBay later this year at a time when it's facing new competitive challenges. Alibaba, Amazon and even Facebook are promoting online payment systems, while Apple Pay and Google Wallet are competing to handle transactions in stores and on mobile devices.

A system that replaces verbal communication between pilots and air traffic controllers with computerized messages was unveiled Thursday by federal aviation officials, who said the system will reduce delays during weather events and cut down on errors that occur during routine voice transmissions.

The Federal Aviation Administration demonstrated the Data Communications system, called Data Comm, at New Jersey's Newark Liberty International Airport. The system has been used on a trial basis since 2013 at the Newark and Memphis, Tennessee, airports.

Toshiba said Friday it was expanding an accounting probe to its television, memory chip, and computer divisions, after earlier warning the investigation would take a toll on its balance sheet.

The huge conglomerate, which makes everything from batteries to nuclear reactors, said last week it was revoking its earnings forecast for the past fiscal year and would not pay a dividend.

The U.S. National Security Agency developed plans to hack into data links to app stores operated by Google and Samsung to plant spyware on smartphones, a media report said Thursday.

The online news site The Intercept said U.S. intelligence developed the plan with allies in Britain, Canada, New Zealand and Australia, a group known as the "Five Eyes" alliance.