Software

Grade 11 refines the OS picture: how single-user, multi-user, network and embedded systems differ, and what that means for real deployments.

Programs written in a high-level language must be translated to machine code. The two main translation strategies — compiling and interpreting — trade speed for flexibility.

Systems process work in different patterns depending on urgency and volume: immediately, in scheduled batches, or continuously in real time.

Virtualisation lets one physical computer act as several independent "virtual" computers, each with its own OS — the technology underneath cloud computing.