Regular Expression Position Matching
In this article you how to use regular expressions to match characters at the beginning, end, both beginning and end, or at any specified location in a string. More ...
Find Your WiFi Password on Windows 10
One of the most common reasons to find your Wi-Fi password is to use it on another PC or device to connect to your Wi-Fi network. Here's how. More ...
Inkscape Layers and Z-Order
Inkscape's use of the Z axis is represented by layers and is called z-order. When you first draw an object on an empty canvas, it has a z-order of 1. If you draw a second object, it has a z-order of 2. If you draw a third object, it has a z-order of 3 and so on. More ...
What is an Ethernet Crossover Cable?
When connecting two computers together without a switch or router in between you need a special cable, called a crossover cable, that has the transmit wire pair swapped with the receive wire pair. More ...
Inkscape Basic Fill
In Inkscape you can fill a shape with just about any color, texture, or pattern that you desire. In this article we discuss how to fill a shape with a basic color. More ...
Fundamental Digital Logic Gates
All the advanced features of the most powerful computers, such as mulicore and parallel processing are done with digital logic. In this article I explain the fundamental concept of digital logic in simple and clear language so that anyone can understand it. More ...
Understanding Modern PC Specifications
There is a huge variety of different PCs available out there. Its no wonder that consumers are confused about what to buy. This article explains modern PC specifications. More ...
What is a Regular Expression?
A Regular Expression (regex) is a sequence of characters that define a pattern that allows you to search, match, locate, replace, manipulate, and manage text. Regular expressions are very powerful, but also difficult to understand and complicated to use. More ...
Regular Expressions Lookarounds
In this article you learn how to match a pattern only when it comes after another pattern (or after not that pattern) or only when it comes before another pattern (or before not that pattern). More ...
Introduction to HTML
A Web server sends the response to the client browser with a set of instructions written in HTML (HyperText Markup Language). HTML consists of tags that define the structure of a web page. It is the standard markup language for documents to be displayed in a web browser. More ...
Capacitors
A capacitor is an electronic component that can store electric charge. A capacitor is constructed with two conductive plates separated by an insulator called a dielectric. More ...
The figure and figcaption Tags
The html figure element is a container for an image and optionally for a figcaption element that defines a caption for that image. More ...
Inkscape Exercise: Draw Photorealistic Sphere
Although Inkscape is a 2D drawing application, it is quite capable of drawing photorealistic 3D images. To demonstrate this capability, in this article I show you, step-by-step how to draw a photorealistic sphere. More ...
Regular Expression: Alternation
In this article you learn how to create an alternation regular expression that will match alternate patterns in a string. More ...
Inkscape Shadows and Highlights
Adding shadows and highlights to your drawings can create a touch of realism. In this article you learn how to add shadows and highlights to your Inkscape drawings. More ...
Minispreadsheet
Minispreadsheet is a tiny extremely easy to use spreadsheet, You can type text into a cell, you type a number into a cell. A formula is a simple list of cells with basic mathematical operators between them. If you change the number in a cell used in a formula in a different cell, the value in the cell with the formula will be updated. More ...
