Slack unveils all-in-one AI tools & enterprise search upgrade
Slack launches integrated AI tools and enterprise search, enhancing team productivity with smart writing aids and unified data access across apps. 
© 2025 ITBrief 2:55am Why are CPUs and GPUs so hard to make? Dr. Ian Cutress explains
Dr. Ian Cutress, also known as TechTechPotato on YouTube and the industry analyst behind More Than Moore, is a frequent and welcome guest on PCWorld’s videos and The Full Nerd. And with him in the studio in San Francisco, it would be a crime not to pick his brain on the topic of CPU manufacturing. So that’s exactly what Will did.
First up: what does it take to actually make a silicon chip in a factory? Or to be more accurate, a fabrication plant, or “fab” for short. I once heard it described as “A bag of goes in a machine on one side, the machine punches the bag, and you get a CPU on the other.” The reality is a little more complex. We’re talking thousands of individual steps with hundreds of different components and processes, some requiring scare and precious materials. And that’s just the physical stuff that goes into a chip. Actually getting the factory up and running is the work of years of planning and developing, and billions — sometimes hundreds of billions — of dollars from start to finish.
And of course, things are getting more and more complex as processors become more powerful, using smaller components and processes on the nanometer scale. While a fab can continue making chips for years or decades even after it’s no longer cutting edge, the new stuff is so difficult that it’s getting consolidated into giant competitors. Right now it’s Taiwan Semiconductor Manufacturing Company (TSMC), Intel, and Samsung. Between them they make chips for pretty much everyone, from AMD and Nvidia to Apple, Qualcomm, MediaTek, et cetera.
But there’s a new “focused effort” to make a new 2-nanometer fabrication plant from a company called Rapidus, which is the spearhead for a new push for chip production in Japan. And like the other (remaining) big players, Rapidus would court production from massive clients like those listed above, along with partner companies in the country including Sony, Toyota, and Softbank, among others with the blessing and tax support of the Japanese government. It should be ready to start making absolutely bleeding-edge chips by 2027.
So all this stuff is pretty high-end corporate stuff, and not much of it trickles down to us on the consumer side. But what about the chips that go into graphics cards? And if Nvidia, and to a lesser extent AMD, can make all the money in the world selling chips to the AI industry…why would they even care to sell chips to PC gamers?
As Ian explains, a lot of the same tech and development that goes into that AI moneyspinner also goes into standard, consumer-level graphics cards, to say nothing of other applications like game consoles. To say nothing of the extreme specialization — you can’t just get a low-binned AI chip and throw it into a $2,000 graphics card instead. It also helps to diversify and stay relevant to consumers…because investors are consumers, too. Even a billionaire occasionally shops for a laptop.
Thanks so much to Dr. Cutress for breaking down these complex topics for us. For more on the latest news and trends in the tech industry, subscribe to PCWorld on YouTube, and watch our weekly podcast The Full Nerd.
© 2025 PC World 2:45am  
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The best travel app you haven’t downloaded yet: Free data, cruise plans and VISA perks
Most of us are wise to money-saving travel tips from replacing expensive hold luggage with cheaper carry-on cabin bags to buying your foreign currency online rather than at the airport.
There’s another wise travel tip that could save you a bundle, and it’s much easier than stuffing all your clothes into a tiny backpack.
One of travel’s hidden expenses is expensive foreign data roaming charges when away from your home country, which can rack up significantly for those of us reliant on our phones every day for news, socials and streaming.
Getting an eSIM is the way to beat away unwanted hefty data charges via a dedicated digital mobile data plan.
GigSky
How eSIM’s make everything easy
An eSIM is a virtual version of the tiny SIM cards our phone carrier has us install in our phones. Just like the physical SIM, an eSIM controls our calls, texts and data—just 100% digitally.
You don’t need to change your phone number to take advantage of the much cheaper data while away, so you needn’t fear about being disconnected when you least expect it in an unusual foreign clime.
Safer than Wi-Fi
Of course, you could just rely on Wi-Fi, but outside of your hotel you must find a hotspot and then hope it’s a safe one where you won’t run the very real risk of exposing all your otherwise secure details to hackers.
An eSIM is the safe, inexpensive and convenient solution to travelling with your phone while abroad. Buying a local SIM requires a physical purchase and activation, whereas an eSIM can be as simple as a download and speedy setup. You just leave your domestic SIM card in place, ready to swap back to when you get home.
One of the simplest eSIM implementations we’ve tried is from GigSky, where you control everything simply through a free app—from choosing your destination and setting up your eSIM to activating it when you arrive at your destination and then topping it up with extra data if you need it.
It couldn’t be easier.
GigSky
Who are eSIMs for?
Combined with the app, international eSIMs are great for both casual holidayers and frequent business travelers, with fixed data plans range from 500MB to 50GB and in duration from just a three-day city break or business trip to over two weeks in the sun, on the slopes and even on a cruise ship.
GigSky provides an unmatched service in 200 countries, including Cuba (which almost no other provider covers.
It even works on cruise ships with over 200 of the biggest names such as Carnival, Disney, Celebrity and Princess included. This is bundled with a regular land service so that a single plan works on the entire vacation—as well as inflight on over 20 different airlines.
Aside from the simple app that you need download only one, we like US-based GigSky as it is a Mobile Virtual Network Operator (MVNO) that owns much of its core network elements, offering more flexibility and control compared to most eSIM providers that are just resellers. This means that its customer service can much better diagnose any network or installation issues, and you don’t need to buy a new eSIM for every plan.
As a network operator, the app will always be accessible, even if you run out of data.
Free trial
Better yet, GigSky offers a free 500MB plan for Europe or 100MB everywhere else (no credit card required), for those who want to test this convenient and money-saving eSIM solution.
Get 500MB of free mobile dataVisit GigSky
Visa customers can take advantage of special promotional offers that allow them to redeem complimentary mobile plans.
© 2025 PC World 2:45am 
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