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Author: Administrator

Wired & Wireless Connection Methods

Posted on by Administrator Posted in Computer Science, Computing Concepts, Computing Terminology Quiz, GCSE Concepts, GCSE Quiz, Quizzes

Take the Quiz! (open full screen) Can you recognise the different types of cables used in IT? Do you know what are the main wireless technologies used to connect IT equipment? Take the quiz to check your knowledge of wired…

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LED Dice Logic Gates Diagrams

Posted on by Administrator Posted in A Level Concepts, Computer Hardware, Computer Science, Computing Concepts, Physical Computing, Solved Challenges

LED Dice Our aim is to create an LED Dice using a breadboard and 7 LEDs disposed as follows: We will then use three buttons/switches to control the 7 LEDs of the dice to recreate the following patterns: Octal Number…

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Stopwatch Class (JavaScript)

Posted on by Administrator Posted in A Level Concepts, Computer Science, HTML, CSS & JavaScript, OOP Concepts

In this challenge we will create an interactive stopwatch using HTML, CSS and JavaScript. The aim of this blog post is to use Object Oriented Programming to create our own Stopwatch class. Step 1: Stopwatch Class and its constructor First…

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Poker Card Game (JavaScript)

Posted on by Administrator Posted in Computer Science, HTML, CSS & JavaScript, JavaScript

In this challenge we will create a one-player game of poker based on the rules of Texas Hold’em Poker. In a game of Texas Hold’em Poker, for each round, five “community cards” are dealt face-up on the “board”. Each player…

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Stacks and Queues in LMC

Posted on by Administrator Posted in Computing Concepts, Little Man Computer (LMC)

In this post we will investigate how to implement a queue and a stack data structure using low-level programming. We will use an upgraded version of Little Man Computer (LMC) that supports indirect addressing to to do. Implementing a Queue…

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Algebraic Pyramid Challenge

Posted on by Administrator Posted in Computer Science, Python - Intermediate, Python Challenges

For the purpose of this challenge we will use algebraic pyramids pointing downwards (or upside down pyramids!). The idea of this mathematical puzzle is to fill in all the bricks of a pyramid based on the following rule: To work…

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Bracket Validator

Posted on by Administrator Posted in Computer Science, Python - Advanced, Python Challenges

The aim of this Python Challenge is to write a script to validate an arithmetic expression by checking that it has a valid sequence of opening and closing brackets. Let’s consider the following arithmetic expressions to decide whether they contain…

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Proportions and cross products

Posted on by Administrator Posted in Computer Science, Python - Intermediate, Python Challenges, Solved Challenges

A proportion is simply a statement that two ratios are equal. The following are examples of proportions: 1/4 = 25/100 8/24 = 1/3 40/60 = 2/3 Proportions are often use in Maths to simplify a fraction or to represent a…

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Linked Lists

Posted on by Administrator Posted in A Level Concepts, Computer Science, Computing Concepts

A linked-list is a dynamic data structure used in computer science. It consists of a collection of nodes where each node contains a piece of data (value) and a pointer (memory location) to the next node in the list. The…

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XOR Encryption Algorithm

Posted on by Administrator Posted in Algorithms, Computer Science, Computing Concepts, Cryptography, Python - Intermediate, Python Challenges

The XOR Encryption algorithm is a very effective yet easy to implement method of symmetric encryption. Due to its effectiveness and simplicity, the XOR Encryption is an extremely common component used in more complex encryption algorithms used nowadays. The XOR…

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