12 Digital Technologies · Computer Science

Five ideas. One exam. Whichever you've been given.

Every topic below leads to the same place: NZQA's Level 2 Digital Technologies achievement standard 91898, "Demonstrate understanding of a computer science concept." You only need to study the one topic you've chosen or been assigned — the others are here for reference, or for whenever they're built out.

5 topics·Choose 1 for your 91898 assessment·2 of 5 built so far

Note

Each built topic follows the same format: eight 60-minute sessions across two weeks, with a homework block in Week 1 and Week 2, finishing with a practice assessment modelled on real past 91898 papers. If your topic below says "in development," check with your teacher for when it will be ready.

Choose your topic

8 sessions · Ready

Computer Security

Built around one very exposed fictional robotics club — one shared password, a laptop that goes home in a backpack, and no backup plan. Covers the CIA triad, malware and social engineering, access control, encryption and hashing, networks, backups, and how to design a real security plan.

8 sessions · Ready

Encryption

Built around real companies and real technologies instead of a case study — Apple, Google, WhatsApp, banks, garage door remotes. Covers symmetric and public-key encryption, HTTPS, hashing and passwords, everyday uses, human factors and ethics, and future-proofing against quantum computing.

In development

Artificial Intelligence

Notes for this topic haven't been written yet.

In development

Complexity and Tractability

Notes for this topic haven't been written yet.

In development

Error Control

Notes for this topic haven't been written yet.

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