Process and O/S Interactions

P1

P2

PN

. . .

Scheduler

Memory

Manager

File

System

Window

System

Network

System

User processes

Library

Procedure Calls

Scheduling

events

Disk driver

Display

driver

Ethernet

driver

SVC

SVC

SVC

SVC

User Library

User Library

User Library

User Library

Device drivers

Operating

System

Services

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