1. Memory Management

• all data in memory before and after processing
• all instructions in memory in order to execute
• memory management determines what is memory when 
• optimizing CPU utilization and compute response to users
• memory management activities
• keep track of which parts of memory are currently being used and by whom
• deciding which processes (or parts thereof) and data to move into and out of memory
• allocating and deallocating memory space as needed
• virtual memory management is an essential part of most operating system