Defination: Processes Synchronization or Synchronization is the way by which processes that share the same memory space are managed in an operating system. It helps maintain the consistency of data by using variables or hardware so that only one process can make changes to the shared memory at a time. There are various solutions for the same such as semaphores, mutex locks, synchronization hardware etc.
Example: Let us take a look at why exactly we need Process Synchronization. For example, If a process1 is trying to read the data present in a memory location while another process2 is trying to change the data present at the same location, there is a high chance that the data read by the process1 will be incorrect.
Different elements/sections of a program:
1). Entry Section: The entry Section decides the entry of
process.
2). Critical Section: Critical section allows and makes sure that only one process is modifying the shared data.
3). Exit Section: The entry of other processes in the shared data after the execution of one process is handled by the Exit section.
4). Remainder Section: The remaining part of the code which is not categorized as above is contained in the Remainder section.
