Tutorials

Creating a GIF

Making a GIF: tools for animated graphics and short clips

Memes as video clips, snippets from popular shows, animated logos, or banner ads: the practical GIF format has universal appeal, and can be used in many online contexts. GIFs can be found all over the internet, but making a GIF is also a popular option, with the added bonus that whoever makes a GIF using original content avoids legal complications. We show you how to create a GIF using both online...

Virtual Machines

An introduction to virtual machines

Virtual machines are extremely practical and versatile: Do you want to set up an isolated test environment, run a Linux application on your Windows computer, or provide different operating systems for cross-platform software tests? With the right virtualization software and an appropriate image file, this is easy. We will introduce you to the basics of hypervisor-supported hardware virtualization...

Learn PHP: our all-encompassing PHP tutorial for beginners

Learn PHP: a PHP tutorial

With a market share of more than 80%, PHP is the go-to scripting language for many programmers when it comes to creating dynamic content. Whether you’re operating your own weblog, running an internet forum, or designing an online shop, it’s likely that the software behind this will be written via PHP. Our PHP tutorial for beginners will introduce you to the basics of the popular scripting...

CodeIgniter: The lean PHP framework

CodeIgniter – The lightweight of the PHP frameworks

CodeIgniter is an open-source PHP framework developed by EllisLab that is currently under the patronage of the British Columbia Institute of Technology. The slim software is based on an MVC architectural structure, offers detailed documentation, and is praised for its performance. We present the makeup, structure, and application flow of the CodeIgniter framework with detailed code examples and...

How to take a screenshot on a Mac

Screenshots for Mac – here’s how it’s done

Screenshots can be extremely helpful and beneficial. Regardless of whether you are sending them to friends or using them professionally, it is always going to be easier to demonstrate it this way than having to describe it. Making iMac or MacBook screenshots is very easy – as long as you know how it all works. Here we show you all the keyboard shortcuts for making screenshots on a Mac, as well as...

jQuery tutorial: introduction and first steps

jQuery tutorial: basics on selectors, syntax, and more

By using the JavaScript library, jQuery, you can easily customize HTML elements. Well-known CSS selectors such as the element selector or the .class selector help you to choose the desired content and manipulate it using various actions. In addition, lines of code can be written that respond to how website visitors navigate and what search terms they enter, and then automatically execute...

Prepared statements in PHP/MySQL

Prepared statements in PHP: Basics and examples

In order to improve the performance of repeated SQL queries and also significantly reduce the risk of manipulation in database access, you can take advantage of prepared statements in PHP and other programming languages. But how does this work, and how can you use prepared statements for managing your database systems?

BIOS beep codes

BIOS Computer beep codes

If your computer suddenly beeps during start-up for no obvious reason, the BIOS may be trying to tell you something. Beep codes indicate problems with hardware or connection issues between different computer components. But what do all of the various beeps mean? We’ve put together a table that shows which system error different types of beeps corresponds to.

Clearing your RAM

Clearing your RAM: our step-by-step guide

Computers simplify our working life and everyday life in many ways. However, if they do not run as usual, they can become more of a hindrance than a help. The various possible causes of performance problems include excessive memory usage, which plays an important role in managing active processes. One possible solution is to clear the RAM, and thereby increase your RAM.


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