Several ratios are used to compare business performance: Return on capital invested = (Net profit ÷ Total assets) × 100 […]

The four-level model of information systems in an organization: Transaction Processing, Management Information, Decision Support and Executive Information Systems.

What an information system is, its five core components, and how information flows through the management levels of an organization.

The difference between modelling and simulation systems, their advantages and disadvantages, and how what-if analysis works in a spreadsheet.

The difference between monitoring systems, which observe and record data, and control systems, which actively change the state of a system through actuators.

The six phases of the System Development Life Cycle, from planning through to support and maintenance, and the most popular SDLC models.

Why organizations outsource system development, the outsourcing process, and how data capture errors are prevented through verification and validation.

The building blocks of data – bit, byte, field, record, table and database – and the problems of traditional file processing that databases solve.

The range of career opportunities in computing, from hardware roles like network engineer and hardware engineer to software roles like software engineer and cloud architect.

Where computers are used across society, from education and healthcare to transport, defense, government and research.