List several ways in which operating systems enhance processing efficiency?
1. Multitasking: the ability of an operating system to work with more than one program at a time.

2. Multithreading: the ability to run multipl threads for a program so processing is faster and more efficient.

3. Multiprocessing: used to process jobs at one time faster than with a single processor.

4. Parallel Processing: mutiple processors are used in a single computer,usually to process a single job faster.

5. Coprocessing: utilizing special processors for specialized chores.

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