1 hour 53 minutes
Hello and welcome to this lecture and this lecture. We're gonna be covering the topic of operating systems, so let's go ahead and get started
before we dive into the different types of operating systems. I wanted to take a moment to talk about what an operating system is.
If you are viewing this video and some type of computerized device, whether it's a mobile device or it's a laptop or a desktop, you are likely using an operating system, which is running the application and is communicating between what you are doing, whether that's your touch screen or your mouse and keyboard
and the hardware, the CPU, the hard drive, the ram
that is inside of your computer. So what the operating system does is it allows you to interact with those components directly via what you see on the screen and it a communiqu. It allows applications to communicate with that hardware
through different service's and processes on things like that. It's the base platform where all your applications reside
and the operating system provides a way for user's to interact with the computer through the graphical user interface, which could be what you see on the pretty screen or through ah, terminal or command line prompts, which would be like the black box with white code of the green coat. That kind of looks like you're in the matrix. That would be
the terminal or the command from
features of an operating system. Include file management, which you know that you can add delete. Modify files you capable of running applications. Obviously, otherwise, you wouldn't be able to view this. Ah handles communication between the applications and the hardware,
and it does that by accessing the CPU the hard drive. The ram in orders, too.
Access files that your modifying Let's say you have photo shop open. You need a modify a picture. Make some color adjustments to the photo. Well, you're using RAM in order to process those changes, and you're using
the hard drive when you decide to save it. And the operating system is what access the bridge between the application and the hardware
and the input and output support. It's the last feature, really, this a simple as the clicking and clacking of your mouse and keyboard. Those ah, those changes that you're making inside the files and how you interact the computer. That support
that is being supported by the operating system is processing all that information the bits, the ones and zeros
from all those clicking and clacking and able to the computers able to process that and do things that you wanted to
diving into the different types of operating systems. I want to jump right into the most popular one, which is Microsoft Windows when this has been around forever. Uh, around the same time they all operating systems were established. Lennox Ah, uh, Mac OS Sir or Apple Macintosh and and Microsoft Windows.
They were all established around the same time period, but Microsoft Windows really focused on the enterprise and user.
They create windows when the seven when there's a 70.1 with this 10 when the server thes air the newer operating systems that you will likely be tested on in your exam. But if you remember back in the day when I was 25 when Sandy A Ones 2000 those role other variations of windows that we've been through
the advantages with when those is that motive applications actually run on Windows and it's a popular choice for the enterprise. Disadvantages is that there's a lot of security threats because it's such a popular,
uh, operating system out there. Most hackers tried to write their malicious scripts and programs for this operating system
because they know that they're likely to get more of, ah, response back from their malicious scripts than they would if they were trying to write it. For Lennox, which most people don't use clinics for daily driving, they just use that for servers and things like that. So
it is the most popular popular operating system, and it has the most security threats. You want to make sure that you are securing your windows properly. The other disadvantage to when those is that there's, ah, large hardware supports. Um, that sounds like a good thing because you can connect most hardware to it.
But they can be troublesome because, well, not every hardware developer
is gonna maintain the software for its, and sometimes that can leak lead to security threats as well. So,
yes, most most software and hardware to work with Windows. But that can lead to issues, too, So just keep that in mind. Here's a closer picture of what Microsoft, when those 10 looks like
so, uh, moving on. Let's talk about Mac OS. So Apple Mac OS is actually the new name. It was the Macintosh before, but Mac OS what we call it now it's apples proprietary operating system. It's running on Mac devices like the I Mac Mac book, MacBook Pro
Ah, that kind of thing and the advantages that is easy and efficient to use. I use Mac OS. I switched over from, um, running on Lennox and I love it. I think I did that six or seven years ago, and I have not looked back. Most of our friends make fun of me because I can't play games. But that's okay.
I like Apple for what it can. D'oh!
And it is efficient. It is easy to use is actually more secure than Windows because, well, apples more expensive to use and so less people have them than windows. It also on Lee runs on certain hardware. It doesn't run on anything and everything like Windows and Lennox does.
You have to have the right combination of the right CPU, the right,
the right type of ram, the right hard, hard drive right motherboard that kind of thing in order to run
the Apple operating system. And when you d'oh make your own because you find the list and you buy the products that you build it out, build your own Ah, Mac computer that's called Macintosh. That's a fun little name for you guys. Remember, um,
but yeah, it is easy and efficient to use. There are fewer security concerns when you compare its windows. The disadvantage is that it does only run on Apple hardware unless you create your own hacking tosh.
There are fewer types of software that run on Mac OS. It's not popular for gaming, like I said, but it's very good for the creative. And if you work in like some kind of development, we do. What development? Something like that.
There's a lot of really handy tools for Apple, and that's what actually helped me make that pivot. I started a Web development, and I loved it,
but it can be pretty expensive to get started using an apple device. So,
yeah, maybe you could find a friend or family member has one, doesn't like it and buy it off them for a discounted price. I usually buy my apple devices used that way. It can save a little bit of money, but still get a good, healthy machine. So
this is what the operating system looks like. This is tthe e desktop, and right there, you could see the hardware specs for this particular computer. Um, yeah, it's very sleek. Very ah, very well put together, very efficient. Has a lot of really good applications, and there's not a lot of security threats to be concerned about.
Next on our list is Lennox Lennox is great. I wish a lot of people use clinics more. Lennox is an open, source based operating system. That means it's free. It is a UNIX base, just like Mac OS, so there's a lot of similarities. For instance, both used the terminal a supposed toe windows, which uses command prompt.
With Lennox, you get distributions and really, with distributions.
It's a Lennox operating system. They're all based on Lennox, but they are built a little bit differently, each specific for ah purpose. So like Red Hat and Debbie Ann and Sulu Nix, those could be used for servers and data basing. Callie can be used for security or hacking, and you bun, too. And,
Lennox mints can be used for your everyday lead driver and you want to. And Lennox Mint could be used for your daily driver,
which could be an alternative to Mac OS or, ah, Windows and I have used both. I like him. I use Callie every day for work. SC Lennox I know you know, for projects that I work on. We used the scene Lennox and Red Hat and Debbie in and all those different types. So as you get into, uh,
your I T career, chances are you will start to work with Lennox distributions,
especially when you're dealing with Web servers and stuff like that. This is a picture of what Lennox Mint looks like. As you can see, it's very sleek, looks a little bit like Windows 10 and it's great. It has a lot of open source software. It's free, everything in there's free.
And ah, the thing that you need to keep in mind is that you can't really play games on here. Some people say you can, and some games do work. I have played him,
but sometimes you run into issues. That's just part of it. That's just because it's not a popular operating system like Windows, but for what it comes with for what it's worth, it's a great operating system, and it's a great alternative if you want to step away from Windows.
So the different types of operating systems are 32 bidders, 64 bit operating systems. And really, what that means is that it depends on what type processor you have in your computer. If you have a slower processor or older processor, chances are you could only run a 32 bit operating system on it based on the size and based on that UH,
operating system or the processor that also the term is what type of applications you can run. So
hardware drivers air specific to the O. S. 30 to bid is X 86 or 64 bits X 64 32 bit operating system cannot run 64 bit APS and 64 bit operating system can run 30 fit 32 bit APS along with 64
Bid Eppes. So,
really, if you're trying to build your own computer and you can determine what type of operating system to get, get 64 bit, be safe. That way you can run anything you want. That's what I always end up going with.
And, ah, next, I want to talk about mobile device operating systems. So when you are testing for the A plus certification, you will have a couple questions on
mobile devices. That is because mobile devices are starting to take over the world. We use them every day. A lot of people use them solely as their work station. Believe it or not, especially if you're on the go a lot. These phones are turning into computers that allow you do everything that your laptop could do. So
to start off, I want to talk about Android. Android is the most popular mobile operating system out there is owned by Google. It's based off of Lennox, so it's open source and it's supported by a lot of mobile devices globally. So you know iPhone, which will talk about here in a second. Ah, iPhone only runs IOS. You can't run anything else on it
every other device, whether it's an LG Samsung Google phone, whatever they all usually run on Android, there is another operating system out there. There's the Microsoft one, but really the ones that you need to know about our android and IOS.
That leaves us the next operating system, which is Apple IOS. So Iowa's was designed for Apple iPhones and ipads it ISS UNIX based. So just like Lennox Lennox, also UNIX based and Mac OS is UNIX based.
Uh, it is proprietary. For Apple devices, that means you can't access the source code. You can do that with an android device, but you cannot do that with Apple.
And it's only exclusive to Apple devices like I said. But you also have fewer security security concerns. And, ah, you know, I used an apple device. They've used Mac computer, usually Apple devices, to kind of work better together because they have really cool features where you can, like share text messages, which is,
and Apple's worlds is considered my message
so you can share my messages. And if you have other family and friends that use iPhones, you can have a lot of really cool sharing features with them as well
the other operating system for mobile devices. I want to talk about us. The Chrome OS, which is actually a newer up and coming operating system. It basically runs off of the chrome browser. If you are familiar with Web browsers, Chrome is one of them. Firefox's another one safari Internet Explorer. Those air all browsers that you can use access websites
and this operating system.
It was built solely on the crumb,
the chrome browser itself. So this is Google's operating system that runs on lots of laptops and devices and things like that, like tablets and stuff. It is based off of Lennox sodas, considered another Lennox distribution.
Everything in this operating system runs in the browser. Like I said, so you can access your videos, YouTube,
Twitter, everything right there. But it's it's formed in like a laptop, just like you probably are using tow. Watch this course.
Several manufacturers support Chrome Os people like Acer, Samsung, Google themselves have made devices for it,
and everything is centered in the cloud. So when you buy a chromebook, you are buying a device with very little scratch disk storage, which means that there's very little storage endlich device itself. And that's because most of your storage of your files and things like that are all being stored in the cloud. You're just using this to access the cloud.
And, uh, you basically need Internet access in order to do anything on the device.
Here's a better look at the operating system right there. That's the picture. It's a very neat operating system. I actually like it. I plan to get these for my family members. For my kids, when they get a little bit older. I think it's great for education. It's a great way to get into
computers. And I really look forward to seeing where this operating system goes
in the long run over time.
All right, that about wraps up this lecture. I will see you guys in the next one.
CompTIA A+ 220-1002
In this course, you will learn the fundamentals of operating systems, security, software troubleshooting, and operating procedures. This course will prepare you to take and pass the CompTIA A+ 220-1002 exam.