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.
Virtual Memory. Processes in a system share the CPU and main memory with other processes. However, sharing the main. memory poses some special challenges. As demand on the CPU increases, processes slow down in some. reasonably smooth way. But if too many processes need too much memory, then some of them will simply.