Process!!!😃

a program in execution, active

registers, program counter text section, data section, stack, heap 포함

• text section : program code
• program counter : represent current activity
• data section : contain global variables
• stack : contain temporary data
• heap : memory during process runtime

Program

excutable file, passive

When program is loaded into memory, It becomes Process.

Process 2개 사용시 , 각각 text section, data, heap, stack 가짐

ex) Process A가 특정 주소 값을 변경해도 Process B는 영향을 받지 않음.

Process state

• new : process 생성
• ready : process 대기 (할당되기 전)
• running : process 동작
• waiting : process 대기 (I/O나 event에 의해)
• terminated : process 종료

running은 한순간에 한 process만 가능