Basic concepts of OS OS Structures. G.Anuradha. Basic concepts of OS. Processes Deadlocks Memory management Input/output Files Security. Processes. Process is a program in execution Associated with each process we have Address space (executable program+data+stack)
the path for file CS101 is /Faculty/Prof.Brown/Courses/CS101.
initially written to provide the most functionality in the least space
started small and grew beyond its original scope
levels not well separated: programs could access I/O devices directly
excuse: the hardware of that time was limited (no dual user/kernel mode)
More functionality combined into one level system call interface to the kernel
Operating System can also be classified as,-