Bhatt, P.C.P. An introduction to operating systems Concepts and practice [GNU/ Linux and Windows] Pramod Chandra P. Bhatt - 5th - New Delhi: PHI Learning, 2019. - xxi, 681p.: ill.; (23cm) Includes index ISBN: 9789387472877 Source: Purchase Subjects--Topical Terms: Operating systems- Computers--Textbook LC Class. No.: QA76.76 / .B43