Operating systems and application software, how an OS manages processes, memory and files, and the utilities that keep a system healthy.
4 free units in this chapter
Grade 11 refines the OS picture: how single-user, multi-user, network and embedded systems differ, and what that means for real deployments.
About 3 minPrograms written in a high-level language must be translated to machine code. The two main translation strategies — compiling and interpreting — trade speed for flexibility.
About 3 minSystems process work in different patterns depending on urgency and volume: immediately, in scheduled batches, or continuously in real time.
About 4 minVirtualisation lets one physical computer act as several independent "virtual" computers, each with its own OS — the technology underneath cloud computing.
About 4 min