Higher Computing Science is assessed by an SQA exam and a substantial practical assignment covering both Software Design and Development and Database, Web and Information System Design.

The programming demand rises sharply from National 5: pupils work with parallel and two-dimensional arrays, records, sub-programs with parameter passing by value and by reference, standard algorithms such as linear search, count occurrences and find minimum/maximum, and modular design.

The systems side covers relational database design and complex SQL, HTML, CSS and JavaScript, data representation including floating-point and colour depth, security precautions and the environmental and legal implications of computing. Structured practice on standard algorithms and past-paper design questions is what moves grades here.

Curriculum Breakdown

Important Topics

Software Design & Development — The full development cycle with formal analysis, design notation and evaluation.
Standard Algorithms — Linear search, count occurrences, find minimum and maximum, and input validation.
Data Structures & Sub-programs — Parallel and 2D arrays, records, procedures, functions and parameter passing.
Database Design & SQL — Relational design, normalisation basics, and multi-table SQL queries.
Web Design & Development — HTML, CSS, JavaScript, and designing for accessibility and usability.
Computer Architecture & Data — Processor structure, memory, floating-point representation and colour depth.
Security, Law & Environment — Cyber threats, security precautions, legislation and environmental impact.

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