Unrelenting storms pummeled much of the United States over the past week, leading to at least 90 weather-related deaths, officials and media reported Sunday. The storm blew across the country into the eastern US as large swathes of the nation were left walloped. Frigid temperatures, snow gales and thick ice have caused fatal accidents on treacherous roadways, snarled air travel, closed schools and cut power to thousands, with millions of Americans under fresh weather warnings.

SEE HOW AMERICANS ARE DIGGING OUT TO START THE WEEK

Forty years ago Steve Jobs revolutionized personal computing by launching the Apple Macintosh, the first PC with a user-friendly mouse and graphical interface that helped the machines enter the everyday lives of people for the first time. Jobs opened a zipper bag in an auditorium in Cupertino, Calif., on Jan. 24, 1984, and lifted out a lightweight computer that not only operated at the click of a button but also, thrillingly, talked. Forty years later, Apple is still wowing the public.

APPLE'S PROGRESSION AND PLANS FOR THE FUTURE OF TECH

The prehistoric megalodon, one of the most fearsome creatures the world has ever known, was a horrifyingly giant shark immortalized in the monster movie "The Meg". But new fossil evidence, scientists said on Monday, makes them think the shark was significantly thinner than previously thought. Megalodon, which went extinct around 3.6 million years ago, is thought to have been up to 50 feet long. But estimates were based on the only remaining fossils -- teeth and vertebrae.

SEE WHY SCIENTISTS ARE CHANGING THEIR VIEW ON THE MEG

Where was the world's largest megalodon tooth found? How long was it?

Friday's answer: The four sports that are being added to the Paris 2024 Olympics are break dancing, sport climbing, skateboarding, surfing.