Batch Operating Systems Time Sharing Operating Systems Distributed Operating Systems Network Operating Systems Real Time Operating Systems Hard real time Soft real time Tasks: It consists of a sequentially executable program and a state Task status, Task Structure and Task Control Block Tasks States: Idle Ready Running Blocked

1. Real Time
Operating Systems
By,
Priyanga KR
Assistant Professor/ECE
School of Engineering, Avinashilingam Institute

2. Operating Systems
➔ An Interface between a computer user and computer hardware
User 1 User 2 User ‘N’
System and Application software’s
Operating Sytems
CPU RAM I/O

3. Types
➔ Batch Operating Systems
➔ Time Sharing Operating Systems
➔ Distributed Operating Systems
➔ Network Operating Systems
➔ Real Time Operating Systems
◆ Hard real time
◆ Soft real time

4. Tasks and Tasks States
Tasks:
★ It consists of a sequentially executable program and a state
★ Task status, Task Structure and Task Control Block
Tasks States:
★ Idle
★ Ready
★ Running
★ Blocked

5. Task States
Idle Ready Running
Blocked
States of a task

6. Tasks and Data
Task ID
Task Context
Program Counter
Stack Pointer
CPU Register
Process Status
Register
Task Priority
Task Context_init
Task and its data including its context

7. Thank You