Encyclopedia

PPPoE – Point-to-Point Protocol
PPPoE: DNS protocol
  • Know-how

How exactly do you access the internet? Those who have a DSL contract, for example, first have to contact their internet provider’s node each time they connect. The provider checks the access authorization and establishes the connection to the internet. The so-called “Point-to-Point Protocol over Ethernet” (PPPoE) is used for this purpose. But how exactly does this protocol work?

PPPoE: DNS protocol
Bootstrap 5 – what’s new
Bootstrap 5: the most important updates
  • Web development

What are the updated features? Bootstrap 5 is meant to simplify the creation of modern, elegant websites. Its creators promise improved loading times, a better user experience, and more meaningful code. No more jQuery, no more Internet Explorer support, but more flexibility to successfully develop websites.

Bootstrap 5: the most important updates
Alt key on Mac
The Alt key on the Mac keyboard: functions and special characters
  • Web development

Do you use the Alt key on your keyboard? There are many practical functions for this key which often goes unused. However, it is well worth checking out. The Alt key on the Mac keyboard gives you access to many hidden functions and special characters. We will show you what this key can do and which keyboard shortcuts you can use to greatly simplify using your computer.

The Alt key on the Mac keyboard: functions and special characters
Option key on Macs
Option key on Mac: How to use the Opt key to save time
  • Web development

The Option key on Macs offers plenty of functions that simplify working with your Mac and streamline various working processes. But where can you find the Opt key on your Mac keyboard, and what functions does it control? We’ll show you what the special key is for and a number of helpful key commands.

Option key on Mac: How to use the Opt key to save time
What is sandboxing?
Sandboxing: purpose and application explained
  • Web development

What is sandboxing? The technical term “sandboxing” is used in software development and cyber security. It describes an isolated environment that allows you to run software in a protected manner. This has the advantage that unfinished or harmful computer programs can neither alter nor damage an operating system.

Sandboxing: purpose and application explained
Mixed reality
What is mixed reality?
  • Online sales

Mixed reality describes the mixing of the “real” and “virtual” worlds using electronic devices. Often used as a synonym for augmented reality, mixed reality clearly has a much broader scope. This article will discuss some successful examples of its use, what the theoretical concept behind mixed reality looks like, and what Microsoft’s role in all of this is.

What is mixed reality?
.jar file
.jar file ending: how to open and use a .jar file
  • Know-how

File formats like .jpg, .mp3 or .gif are well-known and can usually be opened on most devices without any problems. But the .jar ending is less common. These files require special programs to run them. We explain what this file format is and how you can open and run .jar files.

.jar file ending: how to open and use a .jar file
V-Model
What is a V-Model?
  • Web development

The V-Model is one of the most common models for planning and implementing software projects. From the initial concept to programming, to final acceptance – all relevant steps necessary for managing and implementing projects are defined in the V-Model. The V-Model XT is the most current version of the software development process.

What is a V-Model?
XPath Tutorial
XPath Tutorial for Beginners
  • Web development

XPath provides you with a syntax that clearly addresses the elements of an XML document. As a path description language, XPath is the basis for query languages such as XQuery or the transformation of XML documents via XSLT. We’ll introduce to you the XPath data model and use examples to illustrate XPath syntax.

XPath Tutorial for Beginners
Evergreen content
Evergreen content – timeless content for websites
  • Online sales

Timeless content known as evergreen content can attract new visitors to your website while remaining relevant for years to come. Even more so than short-lived content such as up-to-the-minute news, evergreen content requires good editorial quality and research, along with the right keywords for search engines. This way, you’ll reach internet users with general questions about your topic,...

Evergreen content – timeless content for websites