software as a service software as a service is an interesting one you may use it for your core business functions or you may use something which is a mix of saas paas in one to build applications on too
What is Virtual Memory. Virtual memory is a component of most operating systems, such as MAC OS, Windows and Linux. Virtual memory has a very important role in the operating system. It allows us to run more applications on the system than we have enough physical memory to support. Virtual memory is simulated memory that is written to a file on the hard drive. That file is often called page file or swap file.
Video memory enables resolution and quality settings, does not improve speed. Graphics memory is often used by card vendors as a marketing tool. Because gamers have been conditioned to believe that more is better, it's common to see entry-level boards with far more RAM than they need. But enthusiasts know that, as with every subsystem in their PCs, balance is most important.