Why is paging added in protected mode?

Question

Processors

I don't understand why paging is better if a 32-bit bus can work with 4 gigs of RAM.
PS: I'm not a user.

Answer 1

why paging memory vobshe

For flexibility. Here, for example, try to come up with a way to run two processes on the same processor if they are compiled to load into the same addresses? -- Naturally, when switching from one process to another, you will not want to copy the contents of the address space of the current process to temporary storage, and the new process from temporary storage to the address space, but somehow more efficiently make it appear that all memory belongs to one process.

Answer 2

To organize virtual memory.