Systems Software can be a topic that is left to the last moment for revising. It is a topic that can be quite tricky, so teachingisgood has made this resource to simplify the topic, but still get all the valuable content that is required. In the resource, key definitions are given, summary questions and simple graphics are used to explain some of the more difficult bits. It has a clear layout so that students can understand everything in a logical way. The presentation explains what system software is, what an operating system is, it describes in detail all the parts of the kernel (like memory management), the different user interfaces, the purpose of device drivers and it simply and clearly explains all the system utilities. This resource is based on the OCR GCSE Computer Science syllabus for 1.7 System Software but works well for anyone who requires a good quality guide on the topic.

teachingisgood provides high quality resources for a large range of subjects. The resources that are produced are constant and are really simply laid out. The intention is to make things that are really hard become simpler with the resources. The presentation and activity sheet for the Fetch Decode Execute cycle provide a clear understanding of the processes of the cycle. It has a clear structure, explaining everything in a simple way, along the way. The activity sheet has many questions based on the presentation which help students use what they have learned. The resource is based on the GCSE OCR Computer Science content but can be used for anything at all.

Teachingisgood proudly presents this amazing resource at an amazing price! This 122 page presentation covers all* the content needed for the OCR GCSE Computer science course for the paper 2 exam. It covers all the points including all the ones that students struggle on most, with clear text and images to make the presentation easy to teach, read and understand. It also includes high level animations which help students and alike studying this course really and properly understand the hardest topics. The presentation covers everything for OCR GCSE Computer Science Paper 2, which includes… Computational thinking Flowcharts Pseudocode Sorting algorithms Searching algorithms Variables vs constants Introduction to programming techniques More complex programming techniques String manipulation File handling in pseudocode Procedures & sub programs in pseudocode Arrays 1D & 2D arrays Static vs dynamic arrays Databases & SQL Variable scopes Defensive design Repeat entry Validation Whitelist-blacklist Sanitising Encryption Authentication Maintainability Errors Debugging tools Test plan & data Iterative & final testing Logic gates Logic truth tables Machine code vs assembly code vs high level languages Translators IDEs Features of IDEs Units Check digits Converting between binary, hex and denary numbers Storing images Storing sound Compression And that’s not mentioning everything! There’s loads more as well!! *Please note that teachingisgood cannot guarantee that everything is covered in this presentation. The presentation covers all key points needed in terms of a recap, but does not cover every single topic in as much detail.