Write down main functions of the Operating System. Write down the advantages and disadvantages of Batch Operating System.

The Operating System (OS) is the primary software that manages computer hardware and software resources and provides services to computer programs. It acts as an intermediary between users and the computer hardware, ensuring smooth execution of programs. The OS is responsible for managing processes, memory, hardware devices, file systems, and user interfaces. Let’s break down the main functions of the Operating System and analyze the advantages and disadvantages of Batch Operating Systems.

### Main Functions of the Operating System

1. Process Management  
   The operating system manages processes in a system, ensuring efficient execution and handling of multiple tasks. This function involves creating, scheduling, and terminating processes. The OS is responsible for managing the execution of instructions by allocating CPU time, ensuring that multiple processes can run concurrently without conflict (multiprogramming), and preventing deadlocks. Process management also includes context switching, where the OS switches the CPU between processes to allow multitasking.

2. Memory Management  
   The OS manages the computer’s memory, allocating and deallocating memory space as needed. This includes both the primary memory (RAM) and secondary memory (like hard drives). The OS is responsible for tracking which parts of memory are in use, assigning memory to processes, and ensuring efficient usage of available memory resources. Functions like paging, segmentation, and virtual memory are used to maximize the efficiency of memory usage.

3. File System Management  
   File management is another key responsibility of an operating system. The OS provides a structured way of storing and accessing files on storage devices like hard drives, SSDs, and optical media. The ________ _________ ________ _________ _________.
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