AQA A Level - Shropshire Web Geek

The difference between dictionaries and lists in Python

Leave a Comment / AQA A Level, Computer Science, Programming, Technology / By ShropshireWebGeek / 7 minutes of reading

One of the challenges faced by A’ Level learners when acquiring proficiency in Python’s various data structures is understanding how to effectively use its built-in data structures and determine which structure is best suited for efficiently storing and manipulating data. In Python, two commonly utilized data structures are dictionaries and lists. Although these structures may […]

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Case statements in Python

Leave a Comment / AQA A Level, Computer Science, Programming / By ShropshireWebGeek / 6 minutes of reading

Python is a versatile and popular programming language used by developers worldwide for a multitude of tasks, from web development to data analysis. One of the key features that sets Python apart from other languages is its ability to handle complex operations with ease while maintaining a simple and readable syntax. Historically, prior to Python

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Computer Related Legislation in the UK

Leave a Comment / AQA A Level, Computer Science / By ShropshireWebGeek / 6 minutes of reading

The UK has a robust legal framework for dealing with computer related offences. This blog article summarises the legislation as per the requirements of the A’Level OCR Computer Science syllabus.

Referential Integrity Within Database Tables

What is referential integrity?

Leave a Comment / AQA A Level, Computer Science / By ShropshireWebGeek / 2 minutes of reading

Referential integrity is a database concept that ensures relationships between tables are maintained and that data remains consistent and accurate by enforcing rules on data relationships and referential constraints. It ensures that foreign keys in a related table correspond to existing primary keys in the referenced table. Referential integrity is important because it helps ensure

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Creating a chess board in the Python console

Leave a Comment / Computer Science, AQA A Level, Programming / By ShropshireWebGeek / 2 minutes of reading

Introduction – The Chess Board Challenge One of the best ways to learn a computer language is to try and challenge yourself to create solutions to simple problems. This gets you familiar with the language, syntax and helps you develop the correct way of thinking. In many computer programming languages there a multiple ways of

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What is pseudocode?

Leave a Comment / AQA A Level, Computer Science / By ShropshireWebGeek / 3 minutes of reading

Pseudocode is a way of expressing an algorithm without using a specific programming language. It is a combination of natural language and programming constructs, such as control flow statements and variable assignment. It is often used to express algorithms in a way that is easy for humans to understand, and is similar to how one

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What is an algorithm?

Leave a Comment / AQA A Level, Computer Science / By ShropshireWebGeek / 2 minutes of reading

An algorithm is a set of instructions for performing a specific task or solving a specific problem. It is a step-by-step procedure for carrying out a certain task, with a clear start and finish. Algorithms can be expressed using natural language, pseudocode, or a programming language. They are often used to perform mathematical calculations, process

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What is an infinite loop?

Leave a Comment / AQA A Level, Computer Science, Programming / By ShropshireWebGeek / 2 minutes of reading

An infinite loop is a type of loop that never terminates, it runs indefinitely. It’s caused by a logic error in the code where the loop condition is always true. When an infinite loop is encountered, the program can become unresponsive, consuming all available resources such as CPU and memory. Common causes of infinite loops

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Data Structures – Lists and Linked Lists

Leave a Comment / AQA A Level, Computer Science / By ShropshireWebGeek / 5 minutes of reading

Computer science is an ever-evolving field of study that requires individuals to stay abreast of the latest developments in the industry. In this blog post, we will explore two core concepts in computer science: lists and linked lists. We will discuss the differences between the two and understand their applications in a variety of fields.

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Data Structures – Introduction to Stacks

Leave a Comment / AQA A Level, Computer Science / By ShropshireWebGeek / 4 minutes of reading

Computer science is an ever-evolving field, with new technologies and techniques developing at a rapid pace. One of the key topics in computer science is the operations of a stack, which is an ordered dataset of items that can be easily accessed and manipulated. A stack is a type of data structure typically used in

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