Categories
Microsoft Office

Extracting data from a completed Word Form

Microsoft Word can be used to create a digital form complete with a variety of controls. This form can be distributed, filled out by a respondent and returned to the sender. This article deals specifically with a Form created using the Legacy Form controls. The completed form can be opened and viewed, but how does […]

Categories
Theory

Pixelation

Pixelation as a concept is best demonstrated by two versions of the same image, one with a much lower resolution than the other. The image below is the original image, the image to the right is the pixelated image. Both images are exactly 500 x 500 pixels in size (remember a pixel is a block […]

Categories
Theory

Pharming

Pharming is defined as the fraudulent practice of directing Internet users to a bogus (fake) website that mimics (copies) the appearance of a legitimate (official) one, in order to obtain personal information such as passwords, account numbers, etc. Do not confuse pharming with phishing.

Categories
Theory

Phishing

Phishing is the fraudulent attempt to obtain sensitive information or data, such as usernames, passwords and credit card details, by disguising a message as an official, trustworthy electronic communication. Typically carried out by e-mail spoofing – as well as via SMS (“smishing”), instant messaging, and text messaging – a phishing message includes a hyperlink (or […]

Categories
Theory

Catfishing

Catfishing is defined as “luring (someone) into a relationship by means of a fictional online persona”. The goal of building this relationship could be any one of the following: To bully or harass or physically harm the victim (see: cyberbullying, grooming) To gain personal information about the victim to commit fraud with their information The […]

Categories
Theory

URL shortening

URL shortening is a technique on the World Wide Web in which a Uniform Resource Locator (URL) may be made substantially shorter and still direct to the required page. This is achieved by using a redirect which links to the web page that has a long URL. https://en.wikipedia.org/wiki/URL_shortening If you glance at the address bar of your browser right now, you will see that […]

Categories
Theory

Networks

This post is aimed at the Matric Learner preparing for theory assessment: it covers work from the entire CAT syllabus. Much of this theory was covered in Grades 10 & 11 and should serve as revision. Definition: a (computer) network is defined as two or more computer devices connected to each other. The physical network […]

Categories
Theory

Making friends with CAT Theory

CAT is a living subject – you are surrounded by examples of computer technology all the time. The technology changes rapidly and you can keep up-to-date by simply being curious. The theory component of CAT should not be boring “book learning”. Almost without exception, you should be able to see examples of and experience the […]

Categories
PAT Phase 1

Phase 1 research questions

You must become an expert on your PAT topic! You must have all the knowledge that will be required to answer/solve the question posed in your Focus Question. To do this, you must ask yourself: What do I need to know to be an expert on this topic? Part of this process is creating a […]

Categories
CSS

Starting simple CSS

The CAT curriculum, unfortunately, teaches a very old version of HTML. Modern web development has moved on dramatically. One of the important concepts is separating structure from presentation. In this post, I explain through a number of steps how to start your journey to CSS and one of the crucial concepts in modern web development: […]