Do individual applications use different server processes and memory spaces?

I'm not sure I understand your question ?
User Space is the memory area where all the user mode applications run. Kernel space is the area reserved for kernel use. For some Operating Systems kernel space is never swapped out. Each user space process normally runs in its own virtual memory space, and, unless explicitly requested, cannot access the memory of other processes.

First answer by Amitkrdce. Last edit by Amitkrdce. Contributor trust: 22 [recommend contributor]. Question popularity: 26 [recommend question]