Join Mike Meyers for an in-depth discussion in this video What is an operating system?, part of CompTIA A+ (220-1001) Cert Prep 1: The Basics.
with CPU, RAM, and storage, … they can run all kinds of different types of programs. … But the challenge we run into with any computer … is that this one computer could have … lots of different programs on it. … Any one of us has probably run a computer … where we're running a web browser … and a game and all kinds of things simultaneously. … telling us who's running at any given moment. … So we also have files that are stored on a system. … We have all of these things going on, … so what we need is kind of like … a program to run all the programs, … and that's basically what an operating system does for us. … So in this episode, what I want to talk about … is what really is an operating system … and what are some of the jobs that it does. … So when we're talking about operating systems, … the number one big thing we talk about … is what we call the Kernal. … Built into every operating system, … and by the way, when we say operating systems … I'm talking about operating systems, … maybe you've heard of Microsoft Windows or Mac OS …
Details of the CompTIA A+ exams, including blueprints for the current exam, can be found at https://certification.comptia.org/certifications.