Describe the five (5) functions of an operating system.

Process Management: The operating system manages processes in a system. This includes keeping track of each process, its state, and details about the process. It also manages the allocation and deallocation of memory and other resources for each process.

File Management: The operating system is responsible for managing files on a computer. It keeps track of information, where it is stored, and the resources used. It also manages the operations on files like creation, editing, opening, closing, deletion, etc.

Device Management: The operating system manages device communication via their respective drivers. It serves as an intermediary between your computer's hardware and software, managing inputs and outputs to and from connected devices.

Memory Management: The operating system is responsible for managing the system’s memory. It keeps track of each byte in a system's memory and whether it is free or being used. It decides how memory is allocated to processes, and it also manages when memory can be deallocated.

Security and Error Handling: The operating system is responsible for ensuring that unauthorized users do not access the system. It also protects data from physical harm (like power failures or other disasters) and ensures that if an error occurs, the system doesn’t crash and the error can be recovered from.