PROCESS CONCEPT o An operating system executes a variety of programs: ·Batch system-jobs Time-shared systems-user programs or tasks o Textbook uses the terms job and process almost interchangeably o Process-a program in execution;process execution must progress in sequential fashion o A process includes: Information related to process ·stack ·data section ·text section 。heapPROCESS CONCEPT  An operating system executes a variety of programs:  Batch system – jobs  Time-shared systems – user programs or tasks  Textbook uses the terms job and process almost interchangeably  Process – a program in execution; process execution must progress in sequential fashion  A process includes:  Information related to process  stack  data section  text section  heap