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Welcome to Tech News Briefing. It's Thursday May 2nd. I'm Alex Osala for the Wall Street Journal.

Coming up on today's show, rebooting a device is a fix that many people turn to if their phones or computers aren't working right.

We'll hear why it works from W.S.J. Personal Tech reporter Cordelia James.

And then, data centers that power artificial intelligence are growing, and so are their energy needs.

W.S.J. Energy reporter Jennifer Hiller joins us to talk about where that power is coming from

and what that means for the country's clean energy transition.

But first, have you tried turning it off and turning it on again?

If you call your IT department about a problem with your computer, this might be the first

thing they tell you to do. But it turns out that this fix is useful for a lot more than computers.

W.S.J. Personal Tech reporter Cordelia James is here now with more.

Cordelia, when you turn your computer off and on again, what exactly are you doing?

So when you turn your computer off and on again, you're wiping the short-term memory that's in your computer's

RAM and allowing your applications to open from scratch.

So if there's any bugs or something that's causing your device to act a little wonky, those are cleared out and

...