Networking: Manages communication (through protocols) inside and outside the network, Also assists with managing and maintaining the network using utility programmes., Security: The Operating System protects the network from threats such as malware or hackers., Operating systems control user authentication and password security to ensure only authenticated users can gain access., Also manages anti-virus and firewall software to ensure malware cannot gain access to the ICT system., Manages back-ups to ensure that if data is lost then it can be recovered., Memory Management: The operating system allocates blocks of memory between programs that are currently running., Decides how much memory each program will get and for how long, so that data from different programs do not overwrite each other., Multi-Tasking: Uses time-slicing to ensure multiple instructions can be carried out, whilst appearing that these instructions are being carried out simultaneously., Task Scheduler allows multiple apps to run at the same time without losing data., Peripheral Management: Uses Devices Drivers, which receives signals from hardware and translates these signals so that software can understand., When a signal is received from hardware, it is put into a queue until resources become available to carry this out.,

Functions of Operating Systems

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