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This app can help you make healthy and ethical shopping choices

How environmentally friendly is this yoghurt? Is there gluten in this cake? To find the answers to these questions and more, you can download Codecheck, an app that can give you detailed information about what you are buying.

Products in a grocery store in Gadebusch, Germany. The Codecheck app can help shoppers to determine whether products are bad for their health or the environment. — dpa

Two-factor authentication: What it is and how it works

Two-factor authentication in any form is always more secure than a normal password.

Two-factor authentication takes the password process a step further. Not only are a user name and password required to log in to an account, but an additional security step is also necessary. — dpa

Water, dust and technology: Understanding your smartphone's IP rating

The level of protection against liquids and dust is indicated by the device's IP protection class

The level of protection against liquids and dust is indicated by the device's IP protection class. Most new waterproof phones have an IP 67 rating. — dpa

When it comes to gaming mice, precision is key

It's not uncommon for gaming mice manufacturers to claim their mice have optical sensors with extremely high sensitivity and rates up to 16,000 dots per inch (dpi). But in practice, a high dpi rate does not automatically mean greater precision, experts say.

According to experts, the so-called polling rate, which influences how quickly mouse movements and clicks reach the computer, is crucial for accuracy when gaming. — dpa

Free up storage space by deleting these Windows files

Whenever you switch from an older Windows version to Windows 10 or install a major update, a backup of the old Windows files is automatically created. This backup may be handy, but it also takes up a lot of storage space.

Whenever you switch from an older Windows version to Windows 10 or you install a major update on the system, a backup of the old Windows files is automatically created. This can unnecessarily use up space on your hard drive. — dpa

Identity theft poses a threat to every Internet user

All you need to have your identity stolen is an email address, a social media profile or an account with an online retailer. That's why experts say essentially everyone who goes online needs to be wary of fraudsters.

A common form of Internet crime is where a user's name and date of birth is used by a fraudster to order items online. The fraudster gets the goods while the user is left with the bill. — dpa

How to speed up a slow smartphone

If your smartphone is no longer running smoothly, there can be a couple of reasons why.

A full memory can be the cause of a slowdown. To run reasonably smoothly, a smartphone needs at least 10% of its memory to be free. — dpa

Apple finally brings its Maps and Music services to websites

Apple wants to see its Maps and Music services integrated into websites, just like websites have been doing with Google's maps

At Apple's recent annual WWDC developer conference, the company announced it would offer integrated versions of its music and maps services for use in browsers, where Google Maps and Spotify have already long been in use. — dpa

Asus unveils gaming notebooks, gaming phone

Asus has revealed two new Republic of Gamers notebooks fitted with keyboards to suit fans of different game genres.

The Scar II from Asus is aimed at first-person shooter fans and has white WASD keys. — Asus/dpa

Are you using the same smartphone model as Kim Jong Un?

North Korea's leader may be considered something of an outsider to Western ways, and yet it's quite possible you are using the same smartphone model as the secretive dictator.

Despite being isolated from the West, North Korea's ruling class has a taste for Western technology, including phones like the Samsung Galaxy S8 and iPhone X. — dpa

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