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Author: Administrator

Wanted Poster (CSS Task)

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

For this challenge we will create a Wanted Poster using a range of HTML and CSS skills. CSS Selectors & CSS Properties In order to complete this challenge, you need a good understanding of how CSS selectors work. You can…

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Binary Search Tree Implementation

Posted on by Administrator Posted in Algorithms, Computer Science, Computing Concepts, OOP Concepts, Python - Advanced, Python Challenges

Binary Search Trees are an effective solution to store data in a computer program and perform a binary search. The benefits of using a BST (Binary Search Tree) data structure is that data can be added to the tree as…

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Lossless Compression: Huffman Coding Algorithm

Posted on by Administrator Posted in A Level Concepts, Algorithms, Computer Science, Computing Concepts, Python - Advanced, Python Challenges, Solved Challenges

The Huffman Coding algorithm is used to implement lossless compression. For the purpose of this blog post, we will investigate how this algorithm can be implemented to encode/compress textual information. The principle of this algorithm is to replace each character…

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Average night’s sleep survey

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

For her PSHE homework on the importance of sleep, Clarisse has decided to collect data from pupils of different year groups from her school. She will do so using a short survey. The aim of the survey will be to…

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Reverse Polish Notation Parser

Posted on by Administrator Posted in A Level Concepts, Computer Science, Computing Concepts, Python - Advanced, Python Challenges

Reverse Polish notation (RPN), also known as Polish postfix notation or simply postfix notation, is a mathematical notation in which operators follow their operands. This notation is an alternative notation to the standard infix notation in which operators are located…

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Truth Table Generator (Using Python)

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

The purpose of this blog post is to write a Python script that will interpret a Boolean expression and output its full Truth Table. Boolean Expressions & Truth Tables Before attempting this challenge, you should test your understanding of Boolean…

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File Size Calculations

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

Digital data consists of binary information and is stored as a collection of 0’s and 1’s. On a computer system, numbers, text, pictures, sound files, video clips and computer programs are all stored using binary code. Storing text files in…

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Binary Subtraction using Logic Gates

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

In our previous blog post “from transistors to processors” we found out that the CPU consists of logic gates, which are made using transistors. In this blog post we are looking at how these logic gates can be combined to…

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8-bit ALU using Logic Gates

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

In this post we will create an Arithmetic & Logic Unit (ALU) using logic gates. The ALU is one of the main component of the CPU. It is used in the Execution stage of the FDE cycle to perform all…

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Binary Shifters using Logic Gates

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

A binary shift is a binary operation that consists of shifting all the digit of a binary number either to the left or to the right by a fixed amount. Binary shifts can be used to multiply a number by…

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