The New Air-Quality Sensors: CO2, VOC, NOx & PM
STCC4, SGP41, SEN66 and BME690 make it easier than ever to build a proper indoor air monitor Indoor air quality is one of the most
STCC4, SGP41, SEN66 and BME690 make it easier than ever to build a proper indoor air monitor Indoor air quality is one of the most
Data breaches happen all the time, and there’s a good chance at least one of your email addresses has already been caught up in one.
Ask people whether they back up their computer and many will say “sort of” or “I’ve been meaning to.” But drives fail, laptops get stolen,
Learning a handful of keyboard shortcuts is the single fastest way to feel at home on a Mac. You don’t need hundreds, these 15 cover
How many times a week do you type your email address, home address or ‘I’ll call you back in 5 minutes’? Text Replacement lets you
File Explorer is the app you use to find, open and organise your files. You probably use it every day, but most people only scratch
PivotTables have a reputation for being complicated, but they’re one of the easiest ways to make sense of a big spreadsheet. With a few clicks
7-Zip is a free, open-source archiver that opens ZIP, RAR, 7z, ISO and more, and creates password-protected archives. Here’s how to use it and keep it safe.
AppCleaner is a free Mac uninstaller that finds and removes the settings, caches and support files apps leave behind when you drag them to the Bin. Here’s how to use it.
Headers and footers are the areas at the very top and bottom of every page. Anything you put there — a title, your logo, a
Microsoft ended mainstream support for Windows 10 on October 14, 2025. Home users could sign up for a year of Extended Security Updates (ESU), but
Typing “January, February, March…” or numbering 500 rows by hand is the kind of job Excel was built to do for you. AutoFill spots the
For the last few years, most people’s experience of AI has been a chat box. You ask a question, it writes an answer, and you
“Where’s the hash key?” is one of the first questions UK Mac users ask. It isn’t printed on a UK Mac keyboard, but it’s there.
Before your Mac goes to a new owner, you need to remove everything personal from it and unlink it from your Apple Account. On modern
Pings from Mail, Messages and a dozen other apps make it hard to concentrate. Focus lets you silence them, either completely or with exceptions for
Your Mac’s login password protects everything on it. It’s worth changing if someone else knows it, or if you’ve been using something far too simple.
Most modern printers work with a Mac straight away, with no driver disc and no downloads. That’s thanks to AirPrint, which is built into almost
Updates fix security holes, squash bugs and sometimes add new features. Keeping your Mac up to date is one of the simplest ways to keep
