A textbook you can photocopy for GCSE Computer Science (OCR) first teaching from 2016.
Updates will be posted here, so you will be able to download the latest version.
Over 150 pages, tailored to this GCSE course:
1.1 System Architecture
1.4 Wired and wireless networks
1.5 Network topologies, protocols and layers
1.6 System Security
1.7 Systems software
1.8 Ethical, legal, cultural and environmental concerns
2.2 Programming technique
2.3 Producing robust programs
2.4 Computational Logic
2.5 Translators and facilities of languages
2.6 Data representation
+Handy revision section