Computer Science – 7 Interactive Simulators Bundle | Algorithms, Encryption, Hash

Make Computer Science lessons more interactive with this complete collection of seven educational simulators, student worksheets and teacher resources.

Developed to support OCR A Level Computer Science H446, this bundle provides practical activities that help students explore complex Computer Science concepts through interactive demonstrations and experimentation.

From cryptographic hashing and encryption to searching, sorting and Boolean logic, students can see important Computer Science principles in action.

Seven Interactive Simulators Included

1. SHA-256 Hashing and Salting Simulator

Investigate cryptographic hashing, the avalanche effect and salted hash values.

2. Symmetric and Asymmetric Encryption Simulator

Explore simplified symmetric encryption using XOR and asymmetric encryption using a small-number RSA example.

3. Logic Gate Simulator

Investigate AND, OR, NOT, XOR, NAND, NOR and XNOR logic gates with automatically generated truth tables.

4. Binary Search Visualiser

Step through binary search, track array indices and understand how the search range is reduced.

5. Bubble Sort and Insertion Sort Visualiser

Compare two sorting algorithms using interactive, step-by-step demonstrations.

6. Lossy and Lossless Compression Simulator

Explore Run-Length Encoding, simple dictionary coding and lossy quantisation.

7. Brute Force PIN Search Simulator

Investigate numeric PIN search spaces, possible combinations and hypothetical guessing times.

What’s Included?

Each of the seven packages contains an interactive offline HTML simulator, a printable student worksheet, a teacher guide with suggested activities, teacher answers and assessment guidance, plus instructions and a customisable licence template.

That’s seven simulators, seven student worksheets, seven teacher guides and seven sets of suggested answers.

OCR A Level Computer Science H446 Topic Coverage

The resources support teaching and revision across:

• 1.3.1 – Compression, Encryption and Hashing
• 1.4.3 – Boolean Algebra
• 2.3.1 – Algorithms

The Brute Force PIN Simulator also provides opportunities for cybersecurity enrichment and exploring search spaces.

Why Choose This Bundle?

Interactive learning: Students explore concepts practically rather than relying entirely on written explanations.

Supports different learning approaches: Visual demonstrations make challenging topics more accessible.

Ready-to-use supporting materials: Each simulator includes a worksheet and teacher guidance.

Flexible classroom use: Suitable for demonstrations, independent tasks, revision sessions and enrichment.

Offline access: All seven HTML simulators work without internet connectivity or additional software installation.

Purchase the complete collection and make challenging Computer Science concepts more visual, practical and engaging.

Independently developed teaching resources. Not endorsed by OCR.