Home › Forums › 1.4 Answers To Operating Systems This topic contains 0 replies, has 1 voice, and was last updated by kobe73er 5 months, 3 weeks ago. Viewing 1 post (of 1 total) Author Posts January 26, 2019 at 12:03 pm #1299 kobe73erKeymaster 1.What is an operating system? List some popular operating systems. The operating system (OS) is the most important program that runs on a computer. The OS manages and controls a computer’s activities. The popular operating systems for general-purpose computers are Microsoft Windows Mac OS, and Linux 2.What are the major responsibilities of an operating system? Controlling and monitoring system activities Allocating and assigning system resources Scheduling operations 3.What are multiprogramming, multithreading, and multiprocessing? Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic.