Mocks, mark schemes & revision guides.
One board, one spec, no filler, and a quick check that tells you exactly what to focus on.
All resources
Not sure which to buy?
Take the quick check. Pick your level, answer a few questions on each paper and we'll tell you exactly which resource you need, and why. No sign-up.
Which paper do I need?
Pick the best answer for each, it only helps if it's honest!
Copyright & protection
Every resource here is original work, protected, licensed to you, and traceable. Buy with confidence, and please respect that these are for your own use.
Owned & original
All exams, mark schemes and guides are the copyright of Computer Science World and its parent company, Rilgar Systems Ltd. Independently written for OCR J277, not affiliated with or endorsed by OCR.
Visible licence
Every copy carries a visible licence footer naming the buyer, so a shared or forwarded copy is obvious at a glance.
Invisible forensic marker
Each PDF is also stamped with hidden identifiers unique to the buyer, so any copy posted online or passed on traces straight back to who it was sold to.
Class & department licences
Buying for a whole class or department? Get in touch and we'll set up a licence that fits your use.
Purchases are licensed for the buyer's own use. Redistribution, resale or public posting is not permitted. © Rilgar Systems Ltd, all rights reserved.
Questions, answered
Which exam board and spec is this for?
Everything here is written for OCR J277 GCSE Computer Science (9-1), for teaching in the UK. It is independently written and not affiliated with or endorsed by OCR.
How do I receive the resources?
After payment you'll get a receipt from Stripe, and we email you your files. Each copy is personally licensed to the buyer.
Are your resources copyrighted and traceable?
Yes. Every exam, mark scheme and resource is the copyright of Computer Science World and its parent company, Rilgar Systems Ltd. Each copy is also stamped with both a visible licence footer and an invisible forensic marker that are unique to the buyer, so any copy shared, forwarded or posted online can be traced directly back to the person it was sold to. Purchases are for the buyer's own use; please do not redistribute.
Can I use these across my whole class or department?
Yes, if you're buying for a class or department, get in touch and we'll sort a licence that fits. Each PDF is watermarked to the purchaser, so please don't redistribute outside your agreed use.
Do you offer a discount for buying everything?
Yes. The Full Vault (£39) bundles both revision guides, Mocks A to C for both papers, the Paper 2 programming booklet, 100 Misconceptions and the 260 GCSE live flashcards. For exam practice, the Exam Practice Bundle (£34.99) gives you all twelve mocks, A to F for both papers. Each paper also has two Mock Packs of three mocks at £11.99, cheaper than buying the mocks one at a time.
Can I get a refund?
All resources are digital and delivered instantly by email, so once your files have been sent we're unable to offer a refund for a change of mind, in the same way a downloaded file can't be "returned." By checking out you agree that delivery starts straight away and your right to cancel ends once your files are sent. If something has genuinely gone wrong, for example you didn't receive your files, they're faulty, or you were charged in error, get in touch and we'll sort it or refund you.
Get in touch
Question about an order, a class or department licence, or something not working? Send us a message and we'll get back to you by email.
How it works