Explain about Distributed Shared Memory Systems?
Distributed Shared Memory (DSM) systems emulate a shared memory abstraction on loosely coupled architectures in order to allow shared memory programming in spite of missing hardware support. They are mainly applied in the form of standard libraries and use the advanced user-level memory management features present in modern operating systems. Illustrations involve IVY, Tread Marks System, Munin, Brazos, Cashmere and Shasta.