OCR GCSE COMPUTER SCIENCE - GRADE 9 NOTES

This document explains how to convert hexadecimal numbers and examples of where they are sed. It also compares them to binary and therefore shows how they are different and what the advantages of this are.

The document provides conversions from binary to hexadecimal and hexadecimal to denary. The methods are explained and many examples are used, helping one understand how the conversions are executed.

This document includes a wide range of examples as to how conversions between binary, denary, and hexadecimal numbers are made. The examples are fully explained, helping one understand how the conversion in executed.

This document provides an in-depth explanation as to what binary numbers are and how they are represented. It also explains the difference between bits and bytes. It then goes on to explain how denary numbers can be stored and how binary numbers are stored. The pdf explores how numbers are calculate...

This well-written document explores what check digits are and what they are commonly used for. It also explains what ISBNs are and how they are calculated to prevent mistakes in input or transmission of data. The document also provides the user with knowledge of parity bits and how they are calculat...

The document explains what trace tables are used for and shows how to code a trace table in python. It also includes one detailed table, which is fully annotated, showing how the table is calculated.

The document will provide the reader with an in-depth knowledge of these topics. The purpose of assemblers, compilers, and interpreters are explained and the differences are shown clearly in an organised table. The file then goes on to explore the purpose of an IDE and a few common examples.

This beautifully crafted, handwritten document explores how data types are presented and used how the answer is being calculated. Data values are also thoroughly explained, such as constants and variables. Operations and functions are also analysed in a table, explaining their purpose, followed by ...

This file explores the purpose of do-while loops and includes many examples which have been coded on python/pycharm. The examples are annotated allowing the reader to follow through and understand why each part of the code was written. Differences between conditions controlled and counter controlled...

This document explains the purpose of while loops and validation as well as the purpose of present checks, with multiple examples coded on python, included allowing the reader to understand what is being done. Lookup lists are also explored, explaining why they are used and how they are used.

This pdf file explores the overall purpose of loops and their success criteria when using them within a piece of code. It shows a loop coded in pseudocode and another example coded in Python. It also shows the outcome of the code and therefore allows the reader to understand why.

This excellently crafted document allows the reader to explore the types of loops and also includes examples, coded in pseudocode and python. The examples are thoroughly annotated enabling the reader to understand why certain things have been done. It will also help them understand how to validate a...

This document explains what a network is and the multiple advantages they include. It then goes on to explore the differences between local area networks and wide area networks, this is demonstrated in a clear table. In addition to this, the disadvantages of networks are highlighted and the five mai...

This document explores how sound is stored on a computer and how the analogue signal is converted into a series of binary digits which are saved. In addition to this, the document explores the factors which affect the accuracy in which the sound wave is converted to a digital format and the factor w...