Virtual Memory

Virtual Memory

1. Needed when the RAM is full

   • Data is stored there until space becomes available

2. Managed by the operating system

   • Keeps programs and instructions running

3. Stored on the hard drive

   • Slower read-write speed
     • Performance drop if virtual memory is heavily relied on
     • Slower to access data

4. Paging

   • The process of data moving from the virtual memory and the RAM
   • Disc thrashing
     • When the virtual memory goes into a constant state of paging
       • Causes programs to run slowly
         • Can cause application to stop responding