What is Operating System? Creating a Relationship between User and the hardware to manage other software in the computer is called Operating Systems Operating System Types 1. Windows – Win 10, Win 7, Win Xp, Win 98, Win 95, Win 3.1 2. Linux – Open Suse, Red Hat, Cent OS, Madrivira 3. Mac OS – C atalina, Mojave, High Sierra, Sierra, Ei Capitan, Tosemite, Mountain Lain, Lion User Interface User Interface is given be the operating system to interact with user in different kinds of devices. Eg :- Desktop PC, Laptop, Smart Phone and Tabs File Types and Extensions 1. Text Files - *.TXT, *. DOC, *. DOCX 2. Image Files - *.JPEG, *. BMP, *. PNG 3. Audio Files - *.MP3, *. WAV 4. Video Files - *. AVI, *. MPEG Identify the Files and Folder File – A File is a collection of data and information, It is cont