3

(OPERATING SYSTEM STRUCTURES)

(Operating system structure)

(System Component)

(Process Management)

(Memory Management)

(File Management)

(I/O System Management)

(Storage Management)

(Network)

(Protection System)

(Command-Interpreter System)

(Operating system structure)

(Operating System Services)

(Operating system structure)

System Call

(Process Management)

(File Management)

(Device Management)

(Data Maintainant)

(Communication)

CPU (microprocessor)

(Keyboard , Mouse , etc.)

CPU CPU

(Monitor , Printer , etc.)

(System Components)

(Suspension) (Resumption)

(Process synchronization)

(Deadlock handling)

(Process Management)

(System Components)

(System Components)

(Directory)

( )

(System Components)

(Operating System Service)

(File system manipulation)

(I/O operation)

(Program execution)

(Operating System Service)

System Calls ( )

3

stack (push) stack (pop)

5

(Types of system calls)

, (End , Abort)

, (Load , Execute)

(Create and Terminate Process)

(Get and Set Process Attributes)

(Wait for Time)

, (Wait Event , Signal Event)

(Allocate and Free Memory)

(Types of system calls)

(File Manipulation)

(Create and Delete File)

, (Open , Close)

, , (Read , Write , Reposition)

(Get and Set File Attributes)

(Types of system calls)

(Device Manipulation)

(Request and Release Device)

, , (Read, Write, Reposition)

(Get and Set Device Attributes)

(Logically Attach or Detach Devices)

(Types of system calls)

(Information Maintenance)

(System Data)

, ,

(Types of system calls)

(Communication)

(Create Delete Communication Connection)

(Send Receive Messages)

(Transfer Status Information)

(Attach or Detach Remove Device)

(Process and Job Control)

MS-DOS (a) (b)

(Process and Job Control)

UNIX

(Communication)

2

(Message passing)

(Share memory)

(a) (b)