How a Foreign Key Works to Establish a Relationship A primary key uniquely identifies each record in the table. It is a type of candidate key that is usually the first column in a table and can be automatically generated by the database to ensure that it is unique. A foreign key is another candidate key (not the primary key) used to link a record to data in another table. For example, consider these two tables that identify which teacher teaches which course....
What Exactly Is a GPU? A GPU is a processor that is specifically designed to handle graphics rendering tasks. Basically, it’s a component that can create images on the screen. Whether you’re looking at your smartphone, tablet or computer, being able to see an image is down to the device’s GPU; without one, your device would not be able to create any images. Basic computers solely render images and animations such as what you’re looking at right now....
Most software, including some operating systems and programs from most popular software makers, require product keys. As a general rule these days, if you pay for a program, then it probably requires a product key during install. In addition to product keys, some software makers, including Microsoft, often require product activation to help further ensure that software is obtained legally. Open source and free software programs usually don’t require a product key unless the manufacturer implements its use for statistical purposes....
No search terms are necessary with this tool, and it removes the need for people to guess at search terms that may or may not work. What Is a Reverse Image Search Used For? You can utilize reverse image search in various ways beyond just looking up other images. For example, you can use the tool to find the source and maybe the creator of an image. It can even allow users to locate a higher resolution version of the searched-for image....
Aperture priority mode on a digital single-lens reflex camera determines depth of field. What Is the Aperture? The aperture setting controls how much your camera lens opens to capture the image you’re shooting. It works like the pupil of an eye: the more the pupil dilates, the more light and image info are admitted into the brain for processing. Photographers measure the size of the aperture in f-stops—for example, f/2, f/4, and so on....
What Does Google Analytics Do? Google Analytics gathers information about your website because Google tracks who visits which sites. It takes that data and compiles it into reports which can be analyzed to help you create a plan for your site so the site can accomplish the goals you set out. The data can be filtered based on specific details: time of day, location, which pages are most popular, etc. Google Analytics can also pair with other services, like Google Ads, and social networks, to see how your use of paid-for advertisements and mentions has an effect on your site’s activity....
Think of Google Classroom as a centralized dashboard for simplifying all teacher and student communication. How Does Google Classroom Work? Google Classroom is a front end, or dashboard, that teachers can use to manage their classroom and all the accompanying documents. In the past, you needed a paid business-level Google Workspace (formerly G Suite) account to use Google Classroom, but now it’s available free to all eligible institutions, including homeschoolers, In addition to using Google Classroom with a free Google Workspace for Education Fundamentals account, there are paid tiers that offer features such as advanced security analytics, video communication, tracking tools, and academic integrity tools....
Azure offers a long list of cloud services including data backup, content delivery, and virtual machines. The main reason people use Azure is that it provides more flexibility and significantly less up-front cost compared to traditional servers. What Is Microsoft Azure All About? The purpose of cloud computing services like Microsoft Azure is to provide on-demand access to various computer system resources like data storage and computing power, which is referred to as ‘compute....
Microsoft Word is the word processing application of choice for most businesses. Similar versions are available for Mac computers and Windows computers. How Word for Mac Differs From Word for Windows While the Mac version of Microsoft Word is similar to the Windows version, there are a few differences. The Mac lacks integration with SharePoint and Visual Basic. While Word for Mac has some level of support for SharePoint and Visual Basic, it does not support all aspects of these features....
Surround Sound Audio and Sound Diversification Surround sound audio also means sound diversification, with deep, thunderous bass rumbling the floorboards as an explosion happens on screen and subtle sound effects skittering and tapping behind you in a suspenseful scene. For music, it means the complete sonic envelopment of a song. A surround sound system includes a set of speakers—usually five, including the center speaker—and a subwoofer for powerful bass. This is where the term “5....
Google Chrome is also a cross-platform browser, meaning some versions work on different computers, mobile devices, and operating systems. According to Statista, Google Chrome for Android is the most used version, holding more than 36% of the global web browser market share as of January 2022. Using Google Chrome Using Google Chrome is as easy as using the default web browser on your current computer (such as Internet Explorer, Edge, or Safari)....
How Tinder Profiles Work After you download Tinder for iPhone or Android, Tinder takes you through the steps of setting up your profile so you can set up your account. In addition to your name, age, profile photo, occupation, and a short bio, you can integrate Tinder with other apps you use. For example, integrate Spotify to display a favorite song or Instagram to show a feed of your most recent posts....
Like My Status It’s a popular form of Internet slang that Facebook, Instagram, and other social media users typically put in a status update to get more engagement from their friends or followers. How LMS Is Used When used in a status update, Facebook users most often lead with the LMS expression (asking their friends to press the like button on their status) and then include a reason or some kind of reward for doing so....
So what kind of files are your digital songs? This article explains the details of the MP3 filetype, the more-advanced AAC format used by Apple, and some of the other common audio file types that do and don’t work with iPhones and iPods. What MP3s Are and How MP3s Work MP3 is short for MPEG-2 Audio Layer-3. It is a digital media standard designed by the Moving Picture Experts Group (MPEG), an industry group that creates technical standards....
Described as tastemakers on the app, Black creatives are credited with starting many of the platform’s most enduring social trends, from dance crazes like the “Renegade” to popular sounds involving rapstress Nicki Minaj’s video commentary. On Aug. 6, President Trump issued an Executive Order that will prohibit the popular social media app from operating in the United States by Sept. 15 if Chinese executives fail to make a deal with American buyers....
That’s not to say the Pokémon games lack instances and characters worthy of double-takes. Each game’s Pokedex directory is filled with multiple examples of Pokémon that aren’t necessarily kid-friendly. One that’s long been the target of legend and speculation is Cubone. In this article, we explain who, or what, Cubone is and the mystery of what’s beneath its trademark skull mask. Who Is Cubone? Cubone is a small, brown dinosaur-like Pokémon that carries a club....
WIth its easy-to-use wireless setup process, the Apple TV is a great choice thanks to its tight integration with iTunes, iCloud, Apple Music, and Apple TV+. Here are a few things you should consider buying for your Apple TV to ensure you’re getting the best experience. The Apple TV Necessities Apple TV: The obvious, basic purchase. Even if you can get an earlier model for a little less money, don’t bother....
When Google Assistant won’t set your alarm, but you can still set alarms manually, there’s usually some type of problem with the Google app on your phone. How to Restore Your Google Assistant to Working Order If Google Assistant sets alarms and they never go off, or if it refuses to set alarms at all, there is probably some type of issue with your Google app. The Google app is responsible for a lot of behind the scenes functionality, including Google Assistant voice commands, so when it malfunctions, you can end up having this type of problem....
Webcam Essentials You Need to Look For Here are some basic features you need to look for when shopping for a new webcam: Resolution A webcam with a high resolution is a must. The lower the resolution, the grainier the image looks on the screen. Most modern webcams support only high-definition video capture. Look for a video capture resolution of at least 720p or higher. A 1080p webcam is better, and these are becoming more common and more affordable....
There is a lot of hype about 4K Ultra HD TVs. These sets deliver higher resolution images, but there is more to take into consideration that determines what you can actually see on the screen. Three main factors affect the ability to see the difference between HD and Ultra HD: Screen Size, Seating Distance, and Content. Screen Size Although many 4K Ultra HD TVs come in 65-inch and below screen sizes, it may be difficult for many consumers to perceive a significant difference between 1080p HD and 4K Ultra HD at those sizes....
