Complete Operating systems notes

Complete OS notes. It includes all the topics .


complete OS notes

OS pattern

Operating system exam pattern .


Part A:  a to f --- 2*5=10---- unit 1 to 5


Part B:  2 to 7 ---5*6=30 ----unit 1 to 5


Part C: 


8 & 9 OR 10&11:   Unit 1 to 5 


12 &13 OR 14&15   


16 -- compulsory question on case study


Please inform us if any updates

Conversation with TRM regarding to exam

hi!!


This is an important interview with TRM sir regarding to the exam pattern.

Conversation regarding to OS exam

important conversation

we are very much thankful to Hemanth for providing this . Hope this helps a lot. 


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OS important questions for exam [Updated]

This is the second set of Important questions for OS exam.  Rohith Sir suggested these topics . Also he has given his notes to xerox center near yampaa,  we can collect from there.

Operating system important questions for exam

Hi guys!!! This is important update .Please check out this, Rohith sir has sent us some interesting questions that may appear for the exams. We quote his saying-

hi dear plz do check with this.. and please dont expect same type questions for exams... but this would really help u....

You can  download here


Please share this ,helps a lot...

Basic File types in Unix /Linux

Unix provides a file system in which all these processes, connections and devices are accessed via files. It provides special file types for interprocess communication. Following are the file types provided by Unix.
1. Regular Files
2. Directory Files
3. Block Special Files
4. Character Special Files
5. FIFO
6. Socket

Regular files are also called plain files. These file are used to data that can be in the form of text or binary strings. These files can contain the data entered by the user or it can also used to store the data generated by the application programs. Kernel also uses plain files to store the application programs.

Directory files are used to store the names of other files and pointers. Pointers provide us information about the location where contents of file are stored. Process can only read the directory files if read permission is granted but processes cannot write the directory files. Directory files can only be written by the kernel.

Unix system uses files to access devices attached to the system. These files are also called as device files. Device files are either block special or character special. Block special files usually used for disks as data from the disk is accessed in the form of blocks. Keyboards and networking devices transfer data asynchronously(character by character) therefore character special files are used for these devices. FIFO files are used for interprocess communication and sockets are for network communications. Socket can also be used for interprocess communication.

Operating systems assignment 1 second part

this is the second part of assignment 1 ..Click  here for the first part.

             
OS0002


please be sure to add the below content, where ever necessary....

Operating system syllabus for the test

The syallabus told by Sir Trm to Rohit sir

 

Topics introduction to os and overview , 

os goals ,

services and components 

os operation ,

loading , booting , formatting, resource allocation n related functions , 

class of os , os and computer system ,

case study examples and chapter review. 

os structures: monolithic micro kernel n virtual machine concepts , 

System calls n API, case ex wit unix and linux

Sir has also given two imp questions to study :)

1) Illustrate with a figure various components tat make up a full linux system

2) mention the diff prop tat are usually set up wen a process is created n breifly process identity:))

ALL THE VERY BEST :))

Operating system- A concept based approach by Dhamdhere

Operating system- A concept based approach by Dhamdhere - text book free download
                                                                                                            free download

Operating systems by dhamdhere

Operating System Concepts by Galvin

Text book for OS , " Operating System Concepts by Galvin"
                                                                                                      don't forgot to download

Operating System Concepts 7 th Edition by galvin -