This resource breaks down step by step, how to do fixed point binary and why it is needed. It discusses it's need for precision. It discusses the need for floating point binary and then shows examples of completing questions. Moving on from this, candidates are also taught about normalisation. Candidates are then expected to answer 6 questions in each section with an answer sheet attached at the pack. I found that there weren't many OCR resources that show how to do normalisation which is why I put this together for myself. I hope that it may be useful to others.

This presentation is a follow on after students have already learnt about how the Fetch Execute Decode Cycle. The idea of the presentation is that they can flow on from what they've already learnt. This will focus on the AS Level - Von Neumann / Harvard systems and it explains the difference. Following on from this the students are taught the difference between CISC and RISC. The idea of this will be that they understand how instructions are split. There is a task at the end with requirements for students to build a revision poster at the end.

1.3.2 - Characteristics of networks and the importance of protocols and standards. This lesson is the first part to two lessons on section 1.3.2 of the OCR syllabus. The lesson starts off with some questioning on the CPU which was the topic I covered with students in their recent lesson. Check the PowerPoint notes. Slide break down: - Slide 1 - 4 - We’re learning to explain the characteristics of Networks and the importance of protocols and standards - Learning objective and questions. Asks students what a network is. Slide 5 - A video explaining why we need networks. Slide 6-8 - Explains what is meant by a network. Explains what a LAN and WAN is and uses key points from past computing exam papers to give students what the mark scheme would look for. Slide 9-13 - Looks at different transmission media. Gets students to understand copper and fibre optic. Slide 14 Students share what they did for homework. Slide 15 - 25 Explains topologies and includes a video. Their are unplugged activities which get the students to become the network. Final Activity included

This lesson starts off with some previous exam questions about LAN and WAN. It includes answers and shows students where they can gather their marks. It then explains to students how a protocol works. It gives them an example and gets them to think about their communication. Following on from this there is a video explaining the TCP/IP stack with the 4 layers that they're likely to need to know. Each layer is broken down into key points. There is a single exam style question. Students are then expected to look up the remaining protocols which are used regularly in networks. This task can be through poster, video or other medium.

This set of slides is over 45 slides long. It introduces the basic logic gates and basic boolean algebra. It shows how to simplify boolean. There are over 45 slides showing K-Maps / Karnaugh Maps and they show how you can spot the patterns and show what the answers should be. At the end of the slide there are two links to YouTube videos I have made of these slides showing it being taught. It should have a break down of some computing problems which should help you.

This is a short presentation which explains to pupils how to compare lossy with lossless. There are some examples. There are 9 slides and there are some examples of how lossy vs lossless is used with a dictionary to compress text.

This topic introduces data structures such as: - *Arrays *Stacks and Queues *Records *Lists *Tuples There are over 22 slides with some code for algorithms to support how stacks and queues work and how they check whether the queue is full. It should help your students understand the different data structures used in computer programming.

This slide deck includes software development. It looks at the following content through these slides;- *Feasibility *Requirements *Waterfall life cycle *RAD *Spiral *Agile There are some questions are the end and a link to a YouTube video showing me teaching it. It should help you with your delivery.

9 Slides looking at testing in computer science. Covers - Alpha Testing, Blackbox testing, Whitebox testing, Destructive testing, Acceptance testing and other test strategies. No worksheets attached.

Over 30 exam questions with PowerPoint slides and answers for the teacher to work through for the Computer Systems part of the OCR AS Level Computer Science exam. These are past questions and the answers have been broken down into smaller parts to help students answer it. You can email these to your students alternatively you can go through the answers with your pupils. There are questions on the following topics within these slides: - Database Ethics Data transmission Handshake DBMS RISC/CISC Client Server Model HTML CSS SQL Binary / Unsigned Binary RAM/ROM Network Models Real-time

These 7 slides introduce artificial intelligence to students. It includes two basic worksheets with answers and helps the students to get a little deeper in their thought behind how artificial intelligence learns.

There are 13 slides here discussing privacy concerns with the internet. The slides get students to have deeper thinking when discussing. It explains arguments for and against censorship and it gets them to also understand how the internet has made it less likely for us to hide personal information. There is some think time and discussion time build into these slides.

A brief PowerPoint showing open and closed source software. There are 7 slides. They give examples of the software and contrast the two explaining the difference between proprietary software and open source software.

These 8 slides argue for and against automated decision making. The slides also comment on privacy through monitoring. We discuss items such as CCTV and also go into detail about how personal information is now being analysed.

This bundle includes lessons on the following areas of the 9-1 computer science curriculum *Legal Issues *Computer Misuse Act *Freedom of Information Act *Communications Act *Data Protection Act *Copyright Designs and Patents Act *Creative commons *Open source / Proprietary Software *Ethical and cultural issues *Censorship and the internet *Computers in the workforce *Automated decision making *Privacy Issues *Computer technology used to analyse personal information *Artificial Intelligence

These questions will help your students with answer exam style questions on legislation. 8 Pages including an activity sheet and some exam questions I would include on an enable table in the corner of the room. Usually these questions are broken down into essay style questions. There is advice on how to answer these as well as past exam questions. There are some simplified questions for students who will be working towards a 5-7 but then I've included some top end work. Acts covered include: - * Computer Misuse Act * Freedom of information Act * Communications Act * Data Protection Act * Creative Commons * Copyright Designs and Patents Act

There are a bulk load of computer science resources here including the following topics: * Testing * Operating Systems * Lossy Vs Lossless * Logic Gates / Boolean / Karnaugh Maps * Exam questions and answers * Exam questions and answers V2 * Data structures - Tuples / Lists etc.. * Branching and Selection * Computer Science - Methodologies Some of these presentations link to my YouTube channel where I have included videos to help you deliver the content.

This video is a sample of what you will see in the bank of 9 videos which will help your students get started with the Micro:bit. I hope this is useful and that the other videos will get your students started. This video shows you how to get a light moving left and right using iteration.

This lesson works on the assumption that students have already been introduced to the Arithmetic Logic unit and section (a) of the 1.1.1 spec. This lesson covers: - (b) – The fetch-decode-execute cycle, including its effect on registers. (c) – The factors affecting the performance of the CPU, clock speed, number of cores, cache. It includes some starter exam questions around the registers and answers are included in the presentation. Students will be expected to answer these questions. There is a research based task at the end which gets them to research other factors which have an impact on the CPU performance.

Topologies Presentation includes notes to train teachers who are very new to teaching computing. Week 3 - What is topology? Objective: - •Understand the difference between LANs and WANs •Be able to give examples of each network •Identify three different network topologies. ​ Task 1 : - Make notes about the difference between a WAN and a LAN network as your teacher explains things to you. This video will also be shown: - https://vimeo.com/145979347 Task 2: - Your teacher will now get you to act out 3 different networks by getting you up out of your seats. They will follow this by watching this video: https://vimeo.com/145982596 Task 3: - As a class you will come up with success criteria and produce a poster which meets the criteria. You should comment on the following:•​LAN VS WAN •STAR / RING / BUS ​ Useful links: •https://vimeo.com/145979347 - WAN / LAN video •https://vimeo.com/145982596 - Topology video