While nothing has been confirmed, there is lots of talk that Apple wants to put its own, custom-made, ARM processors into upcoming Macs. But what exactly is one, and why is Apple so keen to introduce them to Macs? iMore has a great explainer.

Apple designs its own CPUs and CPU cores that implement ARM instruction sets. The company’s work is completely custom, rather than a repackage of ARM processors. Theoretically, Apple could license x86, the instruction set architecture used in processors from Intel and AMD, and build custom desktop and laptop chips that way, but the team is by now versed in ARM, and chips made with the ARM instruction set are known for their lower power consumption compared to x86. This is all a way of saying that “ARM transition,” while a convenient shorthand, doesn’t fully describe what we expect to happen with upcoming Macs. We expect that, like the A-series chips in iPhones, iPads, and Apple TVs, Apple’s Mac processors will be completely custom.

The UK’s coronavirus contact tracing app has been approved by the Apple App Store and Google Play Store, BBC News reported. Testing will now begin on the Isle of Wight, in the UK’s Channel Islands.

Project chiefs have said their so-called “centralised” approach gives them advantages over a rival scheme advocated by the US tech giants and some privacy experts. But fresh concerns have been raised. The Information Commissioner’s Office has declared that “as a general rule, a decentralised approach” would better follow its principle that organisations should minimise the amount of personal data they collect. The House of Commons’ Human Rights Select Committee also discussed fears about plans to extend the app to record location data.

There was discussion about whether or not the latest iPad Pros have Apple’s U1 ultra wideband chips in them (spoiler alert: they haven’t). However, the processors could have a dramatic effect on the next generation of iPhone, as Samuel Axon explained for Wired.

Apple has been silent about its long-term plans for the chip, but researchers have found many applications for UWB. It was initially pitched to consumers (with little success) as a way to rapidly transfer large files to nearby personal devices, but the proliferation of smart home and location-based technologies has given it a new life. For example, UWB could be used to unlock your automobile door when you approach it. While this is possible with other wireless technologies, UWB is significantly more accurate than, say, Bluetooth Low Energy – accurate enough to know which specific door you’re standing next to, so only that one is unlocked. Leaks from Cupertino have indicated that Apple plans a competitor for Tile – the electronic tags you attach to valuables so you can locate them with an app. Because Tile products rely on Bluetooth LE, U1-equipped smartphones and locator tags would be more accurate at finding a precise location.