What Is a "Blockchain"?

Did You Know? A typical two hour movie, if traditionally shot on 35mm film and played back at 24 frames per second, requires a little over two miles worth of film for theater playback. You can figure out how much film a movie requires by simply multiplying the run time in minutes by 90. Geek Trivia Many Medieval Manuscripts Inexplicably Feature Illuminations Of Knights Fighting? Sharks → Snails → Salmon → Sheep → Advertisement Download Free Kit: The Essentials of IT Management The Essentials of IT Management – September 2017 Kit brings together the latest information, coverage of important developments, and expert commentary to help with your IT Management related decisions. Click here to download Want to Change Your Email Preferences? At some point in the past you subscribed to the How-To Geek newsletter, but if you'd like to change the frequency or unsubscribe, you can do so by clicking the button. Change my Subscription (or unsubscribe) Today's How-To Geek Articles How to Build Your Own Computer, Part Three: Getting the BIOS Ready What Is coreauthd, and Why Is It Running on my Mac? How to Search WhatsApp Chat Messages What Is a “Blockchain”? How to Switch Your Chromebook to “Mono” (So You Can Wear One Earbud) How to Rename Devices on Your Network in the Eero App How to Build Your Own Computer, Part Two: Putting It Together How to Save Photos from the iPhone Notes app to Your Photo Library Today's Review Geek Articles Of Course the Nintendo Switch Sold 10 Million Units Already 15 Geeky Stocky Stuffers for Fans of All Sorts (All Under $15) Geek Comic Today's Tech Term VLAN A VLAN (short for Virtual Local Area Network) is a network of computers and/or servers that appear to be, and behave as if they are actually connected to the same LAN wiring setup even though they are geographically spread out. This is done via specialized software rather than hardware, making it an extremely flexible setup. What We're Reading This section contains what we're reading from around the web, along with commentary from our editors. Think of it like your daily digest of the most interesting things online. France to ban mobile phones in schools from September As you can imagine, not everyone is happy with this notion. [The Guardian] Disney Buying Fox Is All About Competing With Netflix Fascinating article looking at Disney's likely thought process in buying up Fox's movie and TV catalogue. [Stratechery by Ben Thompson] Comcast continues to inject its own code into websites you visit Even better, the code is there to convince people to "upgrade" to one of Comcast's expensive rental modems, regardless of whether users need it. [The Next Web] How to Build Your Own Computer, Part Three: Getting the BIOS Ready So you’ve carefully picked out some parts and built a computer, but it doesn’t really do anything…yet. Before we hop into installing your operating system, we need to take a quick look at the BIOS and prepare it for our operating system. Read This Article → What Is coreauthd, and Why Is It Running on my Mac? You’re looking through Activity Monitor to see what’s running on your Mac, when you notice something unfamilar: coreauthd. What is this process? First of all, it’s part of macOS, so don’t worry about it being nefarious. But here’s a quick look at what it does. Read This Article → How to Search WhatsApp Chat Messages Trying to find a specific message in your huge WhatsApp chat log? There are two ways to search, so you can find what you’re looking for quickly. Read This Article → What Is a “Blockchain”? If you’ve been watching the news lately, you might have heard about something called a blockchain. It’s a concept that makes data ultra-secure for specific uses. You’ve probably heard it in connection with Bitcoin, but it has applications far beyond everyone’s favorite cryptocurrencies. Here’s a quick explanation of how it works. Read This Article → How to Switch Your Chromebook to “Mono” (So You Can Wear One Earbud) On the majority of devices, audio is separated between the two speakers—this is called “stereo.” If you’re hard of hearing in one ear, or listen in an environment not conducive to clogging both ears with sound, you can easily switch your Chromebook to “mono” mode so the same audio comes from both speakers. Read This Article → How to Rename Devices on Your Network in the Eero App Eero is a fantastic mesh Wi-Fi system that can help eliminate spotty Wi-Fi in your house. However, devices can appear in the app as a jumbled-up mess. Here’s how to rename them so that it’s easier to know which device is which. Read This Article → How to Build Your Own Computer, Part Two: Putting It Together So you’ve selected your parts, double- and triple-checked their compatibility, and waited for economy shipping to bring them all to your door. It’s time to get to the fun part: putting them all together. Read This Article → How to Save Photos from the iPhone Notes app to Your Photo Library If you're a heavy user of Apple's Notes app on your iPhone, you've probably noticed a slightly weird behavior: unlike almost every other app, if you take a photo in Notes, it isn't saved to the Photos app. Read This Article → Advertisement Download Free Kit: The Essentials of IT Management The Essentials of IT Management – September 2017 Kit brings together the latest information, coverage of important developments, and expert commentary to help with your IT Management related decisions. Click here to download