Friends, in our last post we've posted the DBMS section of IBPS IT Officers Study Materials. You can download that file from here. Today we are giving you the short notes of Operating Systems (OS). This pdf file consists of important points of Operating Systems in Questions and Answers format so that it will be easier for you to prepare and remember. We hope this little effort will help you in getting good marks. Please share with your friends if you feel our efforts are useful. You can download the pdf file from below link. All the best.