The file extension helps an operating system, like Windows or macOS, determine which program on your computer the file is associated with. For example, the file notes.docx ends in docx, a file extension that’s associated with Microsoft Word on your computer. When you attempt to open this file, Windows sees that the file ends in a DOCX extension, which it already knows should be opened by Word. File extensions also often indicate the file type, or file format, of the file, but not always....

What Are Lock Screens Used For? The lock screen has been around for almost as long as the computer, but in these times where mobile devices are so intertwined in our daily lives, the ability to lock our devices has never been more important. But a device doesn’t need a password for a lock screen to be helpful. One very important facet of a lock screen on our smartphones is to keep us from accidentally sending it commands when it is still in our pocket....

What Is an ASHX File? A file with the ASHX file extension is an ASP.NET Web Handler file that often holds references to other web pages used in an ASP.NET web server application. The functions in the file are written in the C# programming language, and sometimes the references are so short that the file may end up just being a single line of code. Most people encounter this format only by accident when they try to download a file from a website, like a PDF file....

Why Would You Use An Email Alias? Email aliases are helpful when you need to create a short, simple, and generic address for some specific purpose. For instance, let’s say that Fred Johnson works in human resources at his company and is responsible for interviewing potential candidates for current job openings. He might want to post job ads on certain job board websites, but he’d rather not use his professional fredjohnson@companyname....

What is Byte? Byte is a short-form video app from the creator of Vine that’s available for Android and iOS. The premise is simple: Users create 6-second looping video clips and share them with their followers. You can upload a video you’ve already shot to the app or create clips using the built-in camera. Likewise, you can also download videos you like and share then on other social media platforms like Instagram, Facebook, and Twitter....

Pros of ChetahMail CheetahMail offers outstanding list segmentationDetailed reports and customizable analysis toolsHelps you avoid wording commonly found in spam Cons of ChetahMail Message editor not very user-friendlyPoor online help across CheetahMail Description of CheetahMail CheetahMail is a full-featured email marketing service. Free-form SQL queries let you segment lists for advanced targeting and personalization. Tracks open rates, click-throughs, and purchases. Campaigns can be optimized for behavioral patterns. CheetahMail hosts forms, preference centers, and surveys, and provides manual and automatic data sync....

What is Google Fi? Google Fi originally launched as Project Fi on an invitation-only basis in 2015, and it opened to the public in 2016. When it launched, it was only compatible with the Nexus 6, and the public launch added the Nexus 5x and the Pixel line. Compatibility has since been extended to most Android devices in addition to iPhone, although Google only offers personalized customer support and trouble shooting for a fairly short list of devices....

According to most reports, error 53 may occur under the following certain conditions: You own an iPhone 6, 6 Plus, 6S, or 6S Plus. The phone has iOS 8.3 or higher. You are trying to update the OS or restore the iPhone. A hardware repair was performed on the phone by someone other than Apple. You are trying to restore an iOS device using macOS Catalina 10.15, macOS Mojave 10....

What You Can Do With the Echo Show Listen To Music Watch Videos and View Photos Make Video Phone Calls You can use the Echo Show with the Alexa app to make phone calls to others that use Echo products or compatible smartphones. The Echo Show adds the bonus of two-way video calling with other Show owners. You can also use the device as a video intercom using the Drop-In feature....

Over some recent summer nights, I tried out the Pixel astrography feature, and after a few false starts, I got it working. Once I saw my handiwork, I was excited by the quality of the videos and to discover a whole new way to use the Pixel. Google’s Pixel astrography feature allows you to record videos in which the stars appear to be moving in the sky. Of course, you aren’t actually capturing the motion of stars, but the rotation of the Earth....

Joystick drift—a defect in which the joystick or analog stick on your controller registers movements that you aren’t making—is one of the most annoying problems that a gaming console’s controller can suffer from, often requiring hefty repairs or even a complete replacement. A recent breakdown of the PS5’s DualSense controller revealed a number of reasons PS5 owners might see joystick drift, especially when playing games that require heavy controller use to move around and power the camera....

The US Department of Energy recently announced that scientists have, for the first time, produced a nuclear fusion reaction resulting in a net energy gain. Fusion power could eventually make clean, cheap energy and even help save the environment; however, there are still major significant challenges before that happens. “For the last 60 years, when experts were asked about when fusion will become possible, the typical answer was within 20-30 years,” Yaron Danon, the director of the nuclear engineering program at Rensselaer Polytechnic Institute, told Lifewire in an email interview....

You can find your missing tablet using the free Find My iPad app, and one cool feature of it is Lost Mode, which locks down your device and can even display a custom message with your phone number so you can be contacted to return the device. Here’s how to use it. How to Turn on Lost Mode on Your iPad To use Lost Mode, you’ll need to have Find My iPad turned on....

Over the past several decades, different light source technologies have been employed, with laser being the latest to enter the arena. Let’s take a look at the evolution of light source technology used in laser video projectors, and how lasers are changing the game. The Evolution from CRTs to Lamps In the beginning, video projectors and projection TVs employed CRT technology, which you can think of as very small TV picture tubes....

Illustrator is a vector drawing app, meaning you can grab your lines any time after drawing, then bend, move, resize, and recolor them. It’s the pro’s tool of choice for illustration work, and now it’s on the iPad with Apple Pencil support. And even though Illustrator is way better than Photoshop for iPad, some designers see it as a half-baked attempt that’s far from useful. “Stuff like option-click is missing with Apple Pencil, which makes it very inferior,” graphic designer Graham Bower told Lifewire via email....

If you’ve ever found yourself on an unmarked road on Maps and wondered why it doesn’t show up, this update is for you. While it may seem a bit sketchy to allow virtually anyone to draw a road, the collaborative feature will improve Maps, overall. “Collaborative systems with millions of users and any of them able to share feedback on the accuracy of the information make for a self-improving service with the best possible real-time data,” wrote Herve Andrieu, creator of GoogleMaps....

According to a Check Point Software Technologies survey released in November 2020, 71% of security professionals reported an increase in cyber threats since the coronavirus lockdowns started in early 2020. Experts say not enough importance has been placed on cybersecurity in the past, and they’re urging the Biden administration to take it seriously. “The transition and the decisions the administration will make about cybersecurity matter, and it can be very consequential,” said Ed Amoroso, CEO of TAG Cyber, in a phone interview....

Most of us listen to music using an app on our phones. We have an almost unlimited supply of music, along with all kinds of clever features to help us find new music. But these apps are too complicated, and they exist in a morass of other apps, all of which are controlled by a touch screen, the very definition of a moving target. The iPod was the opposite. Offline, finite, totally focussed, and designed to do one thing really well....

The new 4-in-1 Magnetic Wireless Charger went on sale this week, and it’s designed to work with Apple’s latest iPhone 12 models. The sleek, minimalist-looking charger can juice a MagSafe-equipped iPhone, Apple Watch, AirPods, and a fourth device simultaneously. Untangling the Cords The Zens is made from aluminum and comes in a black finish. For the iPhone 12 range, the left-hand side has a stand with a MagSafe holder that can charge devices in landscape and portrait orientations at up to 15 watts....

Involve XR is an “immersive learning platform” that provides medical students with an AI-driven virtual patient, as well as a flexible lesson creation program. An instructor and several students can enter the same virtual space to practice skills such as airway management, patient assessment, and mental health de-escalation, which can be difficult to train on the job. Built in Unreal Engine by Toronto-based company Lumeto, Involve XR is device-agnostic, though it was built and tested via the Oculus Quest....