So what does "SOS" actually mean? Here's everything you need to know about the term and its military origins, plus the new feature on your iPhone that utilizes it for your safety.

Take advantage of the Mutex class to synchronize threads in different processes and the Semaphore class to limit the number of threads that can access a shared resource.

If SOS is showing up on your iPhone's status bar, it means there's no cellular connectivity for your phone. Here are two quick ways to troubleshoot the problem if you think you should have a ...

SZA's "SOS" scores a 13th nonconsecutive week at No. 1 on the Billboard 200 albums chart, while Doechii hits the top 10 for the first time.

This custom Spectre is painted in a bright Semaphore Yellow hue and features a unique hood with fluid-looking silver lacquer decoration.

During its Pixel 9 reveal event, Google shared details of Satellite SOS, which will let you contact emergency responders when you don’t have cellular service.

Rolls-Royce Unveils Latest Bespoke Build: The Spectre "Semaphore": Set to make its official debut at Monterey Car Week's The Qual event.

High above downtown San Jose, Adobe has launched a new semaphore puzzle contest to serve as the tech titan's latest tricky optical telegraph.

A north-western suburbs takeaway focused on selling restaurant grade meals to time-poor customers has revealed it will close after 15 years in business.

In downtown San Jose atop Adobe's Almaden Tower, is Adobe's San Jose Semaphore. The revolving four circles are symbols that are transmitting a message.