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High Definition High-definition television (HDTV) is a selling point for flat-panel plasma and LCD screens. HDTV makes sports, movies, and the Weather Channel look amazing if those shows are broadcast in HD. Most people have at least a vague idea of what high definition delivers for television: a beautiful, sharp picture with more vibrant colors than lower-definition displays. Monitor Resolution and Evolving Video Standards Standards have become clearer on what HD means compared to what it meant in the past....

How Do Neural Networks Work? A neuron is the human brain’s most fundamental cell. A human brain has many billions of neurons, which interact and communicate with one another, forming neural networks. These neurons take in many inputs, from what we see and hear to how we feel to everything in-between, and then send messages to other neurons, which react in turn. Working neural networks are what enable humans to think, and more importantly, learn....

What Does a Public IP Address Do? Public IP addresses differentiate the devices that are plugged into the public internet. Each device that accesses the internet uses a unique IP address. A public IP address is sometimes called an Internet IP. It’s this address that each internet service provider uses to forward internet requests to a specific home or business, similar to how a delivery vehicle uses a physical address to forward packages to your house....

Refresh rate may also be referred to by terms like scan rate, horizontal scan rate, frequency, or vertical frequency. How Does a TV or PC Monitor “Refresh?” The image on a TV or computer monitor screen, at least the CRT kind, is not a static image, even though it appears that way. Instead, the image is “redrawn” over and over on the screen so quickly (anywhere from 60, 75, or 85 to 100 times or more per second) that the human eye perceives it as a static image, or a smooth video, etc....

What is the DIN Standard? Automakers and car stereo manufacturers around the world use this standard, which is why most head units are interchangeable. While the wiring is not standardized, the DIN standard is the reason why you can replace OEM car stereos with aftermarket devices. Although the DIN standard only specifies a single height and width, head unit manufacturers also produce devices that are twice as tall. These double-tall units are referred to as double DIN since they are twice the height of the single DIN standard....

What Is Speaker Efficiency? Speaker efficiency, also known as speaker sensitivity, is a measure of a speaker’s decibel output at a specified amount of amplifier power. For example, a speaker’s efficiency is typically measured with a microphone placed one meter from the speaker. As one watt of power is delivered to the speaker, the microphone measures the resulting volume through a decibel level meter. The output level that results is the speaker’s efficiency rating....

What Device Is Used for Streaming? How Do Streaming Devices Work? A streaming device is a small computer dedicated to streaming content through your TV. It connects to the TV via an HDMI cable and uses your internet connection via ethernet or Wi-Fi. Do You Need a Streaming Device if You Have a Smart TV? A smart TV offers similar functionality to a streaming device, but a dedicated solution can work better, especially if your smart TV is aging....

How System Errors Are Used Just as a doctor may use a certain word to describe a list of symptoms to a patient, the Windows operating system issues an error code to describe a problem it has with a software program, which in turn makes it easier for a software developer to understand what has happened, and therefore how to fix it. System Error Codes Are Unique A system error code is not the same as a Device Manager error code, a STOP code, a POST code, or an HTTP status code (a....

What is an MP4 File? A file with the MP4 file extension is an abbreviation for an MPEG-4 Video file, which is a compressed file format that can contain not only video and still images but also audio and subtitles. MP4 files are usually seen when you download a video from the internet or use a DVD ripping program to save a DVD to your computer. Files like this that only have audio are sometimes saved with the ....

These systems use thermographic cameras, infrared lights, and heads up displays to extend the perception of the driver beyond the limited reach of headlights. By alerting drivers to otherwise invisible hazards, automotive night vision can help prevent accidents. What Is Automotive Night Vision for Cars? There are two categories of automotive night vision: passive and active. Passive systems use thermal cameras that illuminate the heat radiating off objects, animals, and people....

How Does the Capital One Shopping Coupon Extension Work? When you install Capital One Shopping, you’ll notice a new icon in the add-ons or extensions area of the browser window. To use the extension, select the icon whenever you’re in the cart or checkout page for a shopping site. The extension may appear automatically, or you might need to select the icon. A window will appear revealing how many coupon codes it found for the product....

We usually use the term digital music only when contrasting it with analog media where the sound is stored in a physical form, like with magnetic tapes or vinyl records. In the case of cassette tapes, this information is stored magnetically. Physical Digital Media One of the most well-known physical sources of digital music is the compact disc. The basic principle of how this works is that a laser reads the surface of a CD which contains pits and lands....

Encryption puts files into a password protected and scrambled format called ciphertext that’s not human-readable, and therefore can’t be understood without first decrypting them back into a normal readable state called plaintext, or cleartext. When Is File Storage Encryption Used? File storage encryption is more likely to be used if data is stored online or in an easily accessible location, like on an external drive or flash drive. Any piece of software can implement file storage encryption, but it’s normally a helpful feature only if personal information is being stored....

How the Foursquare City Guide App Works The Foursquare City Guide uses your device’s GPS to identify your location and find places nearby that it can suggest to you. The more you use the app, the more it learns about the places you like to go so that it can recommend more places you’ll probably love too. Recommendations are crowdsourced from Foursquare City Guide users just like you who’ve been to those places and have left good ratings and reviews....

What Is Google Home? Google Home refers to two things: the original Google Home smart speaker, and the entire product line, including Google Home Hub, Google Mini, and other products. The original Google Home device is essentially a single two-inch speaker and some computer hardware packaged up in a housing that looks something like an air freshener. It has Wi-Fi connectivity built right in, which it uses to access your Wi-Fi network and connect to the internet....

How Did Green Monday Start? Green Monday was named in 2007 by eBay because of how much money the site made from last-minute shoppers on the day. That year, it was eBay’s biggest sales day of the year. Green in the name has two meanings. First, it refers to the money the retailer made that day; it’s the most profitable of the year. Second, green refers to eBay arguing that it’s more environmentally friendly than a brick-and-mortar store; however, all those shipping boxes used to send goods sold from the site might make that claim challenging to defend....

Bluetooth has taken the wireless speaker and headphone market by storm, so it can be easy to miss new releases featuring Kleer technology. But if you happen to appreciate wireless audio that doesn’t compromise, then you’ll want to start paying more attention to Kleer. Kleer (also recognized as KleerNet) is a proprietary wireless technology that operates in the 2.4 GHz, 5.2 GHz, and 5.8 GHz ranges, and can stream 16-bit / 44....

It does this by using a program you download first and managing the apps from that, rather than doing it all yourself. The app installer is a quick and easy way to download bulk applications reliably and securely. Why Use Ninite? Most of us have installed different forms of software on our computers, from voice and video call solutions like Skype or WhatsApp to antivirus and security programs. Then there are internet browsers, such as Chrome or Firefox....

Phubbing is the frustrating and taxing way in which some people can ignore or even interrupt a conversation to look at their phone. It’s the practice of showing more interest in whatever it is that’s on the smartphone than what you or someone else are saying. Many people are guilty of it, but where did phubbing come from? And what are some good ways to combat it? Phubbing Meaning Explained Phubbing, or snubbing someone to look at your phone, isn’t a new phenomenon....

Tagging Explained In the beginning, Facebook tagging could only be done with photos. Today, however, you can incorporate tagging into virtually any type of Facebook post. A tag is essentially a clickable name that appears in the caption of a photo. When you roll your cursor over the photo that has tagged users in it, you’ll see those users’ names appear over the photo (often over their faces). This made a lot of sense back when it was exclusively meant for photos because anyone who uploaded photos could tag their friends who appeared in them to put a name to each face....