SACE Stage 2 Digital Technologies study guide
SACE Stage 2 Digital Technologies · Work through your exam, one topic at a time.
SACE Stage 2 Digital Technologies is a Year 12 subject within the South Australian Certificate of Education, the senior secondary qualification administered by the SACE Board of South Australia. It is designed for students in their final year of schooling who want to build capability in computing, information systems and the social and ethical dimensions of digital technology, and it commonly feeds into tertiary study or vocational pathways in information technology. The SACE Stage 2 Digital Technologies study guide has 4 sections and about 1,340 words.
01Computational Thinking
Computational thinking is the discipline of turning a messy problem into a form a machine can execute. Candidates must be fluent with decomposition (breaking a problem into smaller sub-problems), pattern recognition (spotting repeated structures or recurring cases), abstraction (removing detail that does not affect the solution while keeping what matters) and algorithm design (an ordered, unambiguous, finite sequence of steps).
375 words, about 2 min02Design and Development
The design and development domain covers how a digital solution moves from a stated need to a tested product. Candidates must understand the software development life cycle stages: requirements analysis, design, implementation, testing, deployment and maintenance, and that these are iterative rather than strictly linear.
332 words, about 2 min03Data and Information
This domain is about the difference between data (raw symbols) and information (data processed into meaning). Candidates must understand the data information cycle : collection, organisation, storage, processing, analysis, presentation and interpretation, and be able to identify where errors can enter.
337 words, about 2 min04Digital Systems and Impacts
Digital systems questions span hardware, networks and the social consequences of technology. Candidates must understand the components of a computer system : CPU (control unit, arithmetic logic unit, registers), memory (RAM volatile, ROM non-volatile, cache), storage (magnetic, solid-state, optical), input and output devices, and the fetch-decode-execute cycle .
296 words, about 1 min