i'm currently doing sample questions to practice for my exam, and one of the questions about IPC(Inter process communication) stated that processes need to communicate to:
1. pass some information
2. so as to not interfere with on another when accessing shared resources
3. to ensure proper sequencing of dependent activities
the question asks the last two relates to threads, why not the first one?
I've looked through my lecture notes but couldn't find an answer, can anyone please help?