Ping A ping is a signal sent to a host that requests a response. It serves two primary purposes: 1) to check if the host is available and 2) to measure how long the response takes. A ping request can be performed using a ping command, which is a standard command in most command line …
Pinterest Pinterest is a social networking website that allows you to organize and share ideas with others. You can share your own content as well as things that other Pinterest users have posted. Once you register for a free account, you can create your own “boards” to organize your content. Examples of topics include recipes, …
Portal Web portals come in two flavors — internal and external. Internal portals are designed to provide services within an organization, while external portals serve as a starting point for browsing the web. Internal Portal Many businesses have a company portal, which is a website designed to provide communication and services to employees. For example, …
Primitive In computer science, a primitive is a fundamental data type that cannot be broken down into a more simple data type. For example, an integer is a primitive data type, while an array, which can store multiple data types, is not. Some programming languages support more data types than others and not all languages …
Progressive Web App A progressive web app (PWA) is a web application designed to provide an experience on par with a native application. A PWA uses modern web technologies like WebAssembly and JavaScript service workers to provide fast execution of code and the ability to run offline. Unlike a traditional web app, a progressive web …
Protocol A protocol is a standard set of rules that allow electronic devices to communicate with each other. These rules include what type of data may be transmitted, what commands are used to send and receive data, and how data transfers are confirmed. You can think of a protocol as a spoken language. Each language …
Proxy Server A proxy server is an intermediary server through which other computers access the Internet. It serves as a gateway that can monitor and filter all traffic that passes through it. Businesses, universities, and other large organizations often use proxy servers on their networks to improve security and make it easier to manage network …
RADCAB RADCAB is a mnemonic acronym that helps people evaluate information found online. It was created by Karen Christensson, a library media specialist, for helping students research topics on the Web. However, the acronym can be used by anyone who needs to look up information online. Each letter of RADCAB represents a means of evaluating …
Ransomware Ransomware is a type of malware that prevents you from using your computer or accessing certain files unless you pay a ransom. It often encrypts your files so that they cannot be opened. Examples of ransomware include Locky, Reveton, CryptoLocker, and CryptoWall. Ransomware is often distributed as a trojan, or malware disguised as a …
Reciprocal Link A reciprocal link is a mutual link between two websites. For example, if website A links to website B, then website B can add a reciprocal link back to website A. The result of a reciprocal link is two websites that link to each each other. Reciprocal links are typically created for one …