In cryptography, a Caesar cipher, also known as shift cipher, is one of the simplest and most widely known encryption techniques. It is a type of substitution cipher in which each letter in the plaintext is replaced by a letter…
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Access Rights using Binary Masks
Imagine a building with 8 rooms. Each room is fitted with a card reader used to give access or not to different members of staff. Each member of staff has a card giving them access to some of the rooms.…
Responsive Website Layout
When designing a website, you have to consider the different sizes of screens of your internet users. These may access your website using a computer (desktop/laptop), a tablet, a smartphone, a smart TV… A responsive website is a website where…
Using Google Fonts
When formatting text on a webpage, you will more likely want to use different types of fonts. You may be tempted to use fonts that are installed on your own computers. However, you need to be careful as there is…
Resistor in Series and Parallel
In this blog post we will create a Python program that will help us calculate the total resistance when two resistors are connected either in series or in parallel. This program will be based on the following formulae: Program Flowchart…
CSS Snowman
Complete the following snowman using HTML and CSS code: See the Pen CSS Snowman by 101 Computing (@101Computing) on CodePen. Add a Message Add a “Merry Christmas” message above or below your snowman. And use CSS and google fonts to…
Astronomy Challenge
What is a constellation? In astronomy a constellation is a grouping of stars on the celestial sphere perceived as a figure or design. There are 88 recognized constellations and each of these have been named after characters from classical Greek…
Escape Flowcharts
In this challenge you will be asked to solve four mazes by designing their matching escape flowcharts. You can download and print this pdf booklet to draw your flowcharts. Maze #1: The Staircase The first maze has already been solved…
Python Turtle – My House
Using Python Turtle we created a range of functions to draw a house. We use these functions in our main program but can’t seem to get it to work. We believe the code has all the required instructions but these…
HTML – Website Add-Ons
You have now completed a fully working website. You have added a few webpages and created a fully working navigation system. All your pages have some meaningful and relevant content including pictures and text. What’s Next? This blog post will…
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