The Tab key on your computer has its roots in the Tabulate typewriter function, which let you align type to defined (even modifiable) stops, so you could easily type tables of text and numbers, like invoices and so on.
In short, Tab could be used to left-align text, and is still used in modern typing, especially in word processing and in writing code. People who type space-space-space-space rather than a single TAB press still exist, though.
As well as the many features invoked by the Tab key in modern Windows, though – like WindowsKey-Tab to look at the timeline or the more common ALT-Tab to switch between programs – there’s a new capability for Edge browser users that might be worth looking out for.
If you’re using the Edge Preview – the Chromium-based version that has recently been pitched as Enterprise-Ready (for testing at least) – there’s a feature that has been enabled, which lets you search within a website rather than going straight to your favourite search engine and without needing to go to the site’s homepage and perform a search within.
Start by typing the site’s URL in the browser address bar, and you may well see a prompt to press Tab to search within that site.
This is a feature that has existed in Chrome for a while, but now appears more prevalent in the new Edge. The prompt showing up depends on the website implementing an OpenSearch capability, which is used to plug some query into the search engine behind the site, and how well it performs depends on whether that site search is any good.
Try Microsoft.com TAB search term ENTER and you might just see how many apps that match your word in the Microsoft Store there aren’t, but try Amazon.co.uk TAB Surface ENTER and you’ll have the opportunity to buy Surfaces and many things associated with them. Try maps.google.co.uk | RG6 1WG (what? No Street View?)
Perhaps most useful is when you want to try something in a search engine other than your default; so if you normally use Bing, you’ll know that typing a phrase in the address bar on its own will cause the browser to search if it can’t resolve your term to being a URL. Well, if you type google.com TAB term ENTER then it’ll try that same search over there, rather than you needing to go to the search engine homepage first.