execution of computer programs in 'batches' without manual intervention. In batch processing systems, programs are collected, grouped and processed on a later date.

Though not a functionally distinct kind of operating system, mobile OS is definitely an important mention in the list of operating system types.

The operating systems designed for being used in embedded computer systems are known as embedded operating systems.

data, the user remains in contact with the computer and processes are executed under control of the computer's central processing unit.