The latest articles on DEV Community by An-Jun ZHU (@zajblahaj). https://dev.to/zajblahaj https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F836112%2F25f63c1c-11bc-40b3-8f48-f2c3f93c25d7.jpeg https://dev.to/zajblahaj en An-Jun ZHU Tue, 05 Apr 2022 13:22:11 +0000 https://dev.to/zajblahaj/operating-system-concepts-9th-edition-notes-10k4 https://dev.to/zajblahaj/operating-system-concepts-9th-edition-notes-10k4 <h1> Part 1 Overview </h1> <h2> Chapeter 1 Introduction </h2> <h3> What Operating Systems Do </h3> <h4> System View </h4> <ul> <li>An operating system is the heart of computers, mobiles and other computing devices that helps operate the hardware and software.</li> <li>OS carry out the most commonly required operations: <ul> <li>Process Management</li> <li>Memory management</li> <li>File System Management</li> <li>IO System Management</li> <li>Protection and Security</li> </ul> </li> </ul> <h4> Process Management </h4>