That depends very much on the distribution and the method it uses for installing. Many modern distributions can be installed on only 32 MB of RAM using a text user interface. A LiveCD with a full desktop will often require far more, upwards of 768 MB or more.
you can partition the drive.. to use both OS
As much as you can give it. Architecturally, Linux can support 64 GB on an x86 server, and a theoretical 16 exabytes on an x86-64 (no current server can come close to supporting that much RAM in hardware).
As per my memory these OS Ferrodo, Linux, centos won't operate virtual memory.
No. All RAM has to run at the same speed. The USB bus is much slower than the memory bus inside.
That is the "swap partition." It is a dedicated space on the hard disk that fulfills the "swap" feature of virtual memory in Linux.
No. A simple Linux installation uses way less memory than Vista, and even way less than XP. Even with advanced 3d graphics for the desktop, Linux still uses less memory. Let's expand on that answer. Memory usage by an operating system is based on many factors, not the least of which is the behavior of the application in question. It is not a fair question to ask whether one system or another will use more memory, when the applications are built in different compilers to start with, and the desktop environments, a major memory user, may be radically different. Both systems will work fine with the same amount of memory. I have no idea why Vista is mentioned, since it's obsolete now, and very few people use it, much less XP. Since XP will run well on systems that most recent Linux distributions will not, I suspect the previous answerer is being a little facetious, or is biased.
Ease of use is approximately the same for all of them. All three of them use similar interfaces and similar methods for installing software.
Installing Ubuntu (or any available Linux distribution) allows you to use the PS3 as a regular desktop computer. With careful optimization, the PS3 can also be used as a powerful web server.
Random Acccess Memory, Read Only Memory, Universal Serial Bus, Hard Disk. That is a few examples of what Mac people use that also work on Windows and Linux computers
Your question does not make sense. But anyway, virtual memory is basically using harddrive space as fake memory larger than ram. Linux have option to place it on separate partition for efficiency. If you let it use a file, double management of file and virtual memory must be managed.
A swap partiton because it is a dedicated partition and not a file
A Mac is a computer the cost of which varies depending on which model you buy. Linux is an operating system that is free. You can use the Linux operating system on a Mac if required.