Here you will find easy to follow revision sheets which will help your students to recap the topic: 2.6 Data Representation Units bit, nibble, byte, kilobyte, megabyte, gigabyte, terabyte, petabyte how data needs to be converted into a binary format to be processed by a computer. Numbers how to convert positive denary whole numbers (0–255) into 8 bit binary numbers and vice versa how to add two 8 bit binary integers and explain overflow errors which may occur binary shifts how to convert positive denary whole numbers (0–255) into 2 digit hexadecimal numbers and vice versa how to convert from binary to hexadecimal equivalents and vice versa check digits. Characters the use of binary codes to represent characters the term ‘character-set’ the relationship between the number of bits per character in a character set and the number of characters which can be represented (for example ASCII, extended ASCII and Unicode). Images how an image is represented as a series of pixels represented in binary metadata included in the file the effect of colour depth and resolution on the size of an image file. Sound how sound can be sampled and stored in digital form how sampling intervals and other factors affect the size of a sound file and the quality of its playback: sample size bit rate sampling frequency. Compression need for compression types of compression: lossy lossless. The revision sheets include exam questions at the end of each topic to help the students recap their revision and apply it to a question. Check out my shop to save on buying multiple sheets!! Enjoy!

NEW J277 SPEC Here you will find easy to follow revision sheets which will help your students to recap the topic: 1.6 Ethical, Legal, Cultural and Environmental Impacts of Digital Technology ¨ Impacts of digital technology on wider society including: o Ethical issues o Legal issues o Cultural issues o Environmental issues o Privacy issues ¨ Legislation relevant to Computer Science: o The Data Protection Act 2018 o Computer Misuse Act 1990 o Copyright Designs and Patents Act 1988 o Software licences (i.e. open source and proprietary)

NEW J277 SPECIFICATION Here you will find easy to follow revision sheets which will help your students to recap the topic: 1.5 Systems Security The purpose and functionality of operating systems: o User interface o Memory management and multitasking o Peripheral management and drivers o User management o File management 1.5.2 Utility software ¨ The purpose and functionality of utility software ¨ Utility system software: o Encryption software o Defragmentation o Data compression

**NEW J277 SPECIFICATION: ** Here you will find easy to follow revision sheets which will help your students to recap the topic: 2.5 – Programming languages and Integrated Development Environments 2.5.1 Languages Characteristics and purpose of different levels of programming language: o High-level languages o Low-level languages The purpose of translators The characteristics of a compiler and an interpreter 2.5.2 The Integrated Development Environment (IDE) Common tools and facilities available in an Integrated Development Environment (IDE): o Editors o Error diagnostics o Run-time environment o Translators

A introduction to inputs and outputs for KS3, this was part of the Hardware and Software unit that was delivered. Lesson includes an introduction to the topic and tasks to complete. Extensions tasks also included. The full SOW can also be bought in the shop

An easy to follow worksheet designed to revisit RAM, ROM and Virtual Memory as part of 1.2 Memory in the Computer Systems component. The worksheet s designed for students to read over their notes, and attempt the questions, Answer sheet is included. Has been found useful for mock papers with the students in the past ** Answers are included for teachers who are new to the subject

An easy to follow worksheet designed to revisit the FDE Cycle and the Von Neumann Architecture as part of 1.1 Systems Architecture in the Computer Systems component. The worksheet s designed for students to read over their notes, and attempt the questions, Answer sheet is included. Has been found useful for mock papers with the students in the past ** Answers are included for teachers who are new to the subject

As part of the 3D Printing module students are tasked with creating a product, this lesson takes them through the process of developing their product ***The whole unit is also available in my shop! Grab a bargain! and decrease your planning time!***

As part of the 3d printing module students are tasked with designing and implementing a product, this takes the students through that process and introduces them to the importance of design work They are then tasked with producing a design which is to be implemented ***The whole unit is also available in my shop! Grab a bargain! and decrease your planning time!***

Attached is the solution i made to the sample task released by OCR, it has been created using Python (version 3) with the use of the SQLite3 library. An SQL database was created called students to store the information needed. The program allows the user to log in and do the following: 1. Enter and store the students details 2. Recall a students details (need ID number) 3. Show all students 4. Show students by gender 5. Show students by form 6. Delete a Student 7. Log out the data in the database was created using a random name/street generator.

This is the second lesson on Google Sketchup, it introduces the students to new skills that can be used as part of their designing process. Also included is a worksheet to assist in using the previous tools. ***The whole unit is also available in my shop! Grab a bargain! and decrease your planning time!***

Here you will find easy to follow revision sheets which will help your students to recap the topic: 1.2 Memory which includes: the difference between RAM and ROM the purpose of ROM in a computer system the purpose of RAM in a computer system the need for virtual memory flash memory. The revision sheets include exam questions at the end of each topic to help the students recap their revision and apply it to a question. Check out my shop to save on buying multiple sheets!! Enjoy!

Here you will find easy to follow revision sheets which will help your students to recap the topic: 1.3 Storage which includes: the need for secondary storage data capacity and calculation of data capacity requirements common types of storage: optical magnetic solid state suitable storage devices and storage media for a given application, and the advantages and disadvantages of these, using characteristics: capacity speed portability durability reliability cost The revision sheets include exam questions at the end of each topic to help the students recap their revision and apply it to a question. Check out my shop to save on buying multiple sheets!! Enjoy!

Here you will find easy to follow revision sheets which will help your students to recap the topic: 1.6 Systems Security which includes: forms of attack threats posed to networks: malware phishing people as the ‘weak point’ in secure systems (social engineering) brute force attacks denial of service attacks data interception and theft the concept of SQL injection poor network policy identifying and preventing vulnerabilities: penetration testing network forensics network policies anti-malware software firewalls user access levels passwords encryption. The revision sheets include exam questions at the end of each topic to help the students recap their revision and apply it to a question. Check out my shop to save on buying multiple sheets!! Enjoy!

NEW J277 SPECIFICATION: Here you will find easy to follow revision sheets which will help your students to recap the topic: 2.3 Producing Robust Programs ¨ Defensive design considerations: o Anticipating misuse o Authentication ¨ Input validation ¨ Maintainability: o Use of sub programs o Naming conventions o Indentation o Commenting ¨ The purpose of testing ¨ Types of testing: o Iterative o Final/terminal ¨ Identify syntax and logic errors ¨ Selecting and using suitable test data: o Normal o Boundary o Invalid/Erroneous ¨ Refining algorithms The revision sheets include exam questions at the end of each topic to help the students recap their revision and apply it to a question. Enjoy!

Attached is a lesson on how to write to a database using SQLite3 in Python. Included are the following: 1. PPT explaining how to write to a database 2. Example programs (in zip file) 3.Example Database (in zip file, access through a program such as DB Browser (Freeware)) if you need free software to run and connect to sql databases please download the DB Broswer for FREE and also check out a little guide i made to the software, also FREE: https://www.tes.com/teaching-resource/sqlite-program-introduction-db-browser-11751031

In this pack is a scheme of work which can be used in KS3, why plan when you can have your whole year done for you! Included are the following topics: -Digital Safety -Sequencing & Microbits -Hardware & Software -3d Printing in Sketchup Pro -Python Programming Topics in the pack can also be bought as separates if you prefer from my shop.