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Module 2
OS RESPONSIBILITIES FOR PROCESS MGMT. ,[object Object],[object Object],[object Object],[object Object],[object Object]
WHAT IS A PROCESS? ,[object Object],[object Object],[object Object],[object Object]
COMPONENTS OF A PROCESS ,[object Object],[object Object],[object Object],[object Object],[object Object]
CLASSIFICATION OF OS ACCORDING TO THE TYPES OF SYSTEM: ,[object Object],[object Object]
CLASSIFICATION OF OS ACCORDING TO THE TYPES OF SYSTEM: ,[object Object],[object Object]
CLASSIFICATION OF OS ACCORDING TO THE TYPES OF SYSTEM: ,[object Object],[object Object]
IS PROCESS THE SAME AS PROGRAM? ,[object Object],[object Object],[object Object]
UNIPROGRAMMING & MULTIPROGRAMMING ,[object Object],[object Object],[object Object],[object Object]
HOW CAN SEVERAL PROCESSES SHARE ONE CPU? ,[object Object],[object Object],[object Object],[object Object],[object Object]
OS EXECUTION ,[object Object],[object Object],[object Object]
A PROCESS INCLUDES: ,[object Object],[object Object],[object Object],[object Object],[object Object]
SIX (6) PROCESS STATES: ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
SIX (6) PROCESS STATES: (CONT) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
DIAGRAM OF PROCESS STATE State transition _____ internal _ _ _ _external New Ready Active Exiting Stopped Blocked create resume time-out dispatch suspend kill kill exit error Event occurs or resource available
PROCESS CONTROL BLOCK (PCB) ,[object Object],[object Object],[object Object]
PCB INFORMATION: ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
PROCESS CONTROL BLOCK
Operations on Processes ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
CONTEXT SWITCH ,[object Object],[object Object]
CONTEXT SWITCH
PROCESS SCHEDULING: ,[object Object],[object Object]
SCHEDULING QUEUES ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
QUEUING DIAGRAM:
LONG-TERM SCHEDULER (OR JOB SCHEDULER) ,[object Object],[object Object]
LONG TERM SCHEDULER: (CONT) ,[object Object],[object Object],[object Object],[object Object]
SHORT-TERM SCHEDULER ,[object Object],[object Object]
MEDIUM-TERM SCHEDULER (SWAPPER) ,[object Object],[object Object],[object Object]
MEDIUM-TERM SCHEDULER
THREAD: DEFINITION ,[object Object],[object Object],[object Object],[object Object],[object Object]
EXAMPLES OF THREAD ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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