8 hours 53 minutes
Let's take a look at some common operating systems, both for workstations and for mobile devices.
So camped here for its exam asks us to differentiate between operating systems for workstations and those for mobile devices. And remember here by workstation, they mean desktop computers and laptop computers.
Major players in this market are Microsoft, which produces Windows on Apple, which produces our ***,
Microsoft's Windows seven. And when does eight and when does Ted
dominates the desktop laptop market With about 95% of market share?
The rest of the market is shared between apples. OA ***, which is deployed on the on Apple hardware
Lennox, is a derivation off
one of the earliest operating systems, UNIX
Chrome OS, which you may have heard off when which currently is available only on laptops,
is similar to Android, produced by Google
and currently doesn't have a huge market share. Although it's very popular in schools and so on,
as far as mobile operating systems go,
these are operating systems that were developed for smartphones, tablets, wearable technologies, such a smart watches and so on.
These operating systems all have a touch interface
in this market.
and Google's Android operating systems dominate.
We also, though, need to give an honorable mention
operating system called BlackBerry.
He was developed by a company called RIM, which stands for research in motion
specifically for phones.
It provided very good security, which is kind of important with phones because they're easy to lose or to have stolen.
And it was great at managing email on messaging and so on.
Plus it included an actual physical keyboard.
So if you are using it for email, it's much easier to type on that. Then, on a soft keyboard on screen
at one time, BlackBerry dominated the phone market,
but slowly and surely it was crowded out by IOS and Android.
BlackBerry lost significant market share over time, and today Rib has adopted Android as its operating system.
Microsoft has made several attempts to come up with a popular phone operating system.
Windows Mobile was actually the first attempt of a smartphone and waas moderately successful. He was aimed basically a corporation's on DDE not really or the consumer market.
Windows Mobile was replaced with Windows Phone seven
and Windows phone 8.1, which were aimed at the consumer market.
Um, they never really became very popular.
Microsoft replaced Windows phone with Windows 10 Mobile as the operating system,
Although this was a fairly good implementation of an operating system. The problem for Microsoft Waas that the market was already dominated by IOS and Android
currently is not clear. With our development of Windows, Ted, nobody will even continue or not for a short while. Their witness,
uh, Windows 10 website, they removed phones from it, and then they put them back again. So there were lots of rumors flying around his Microsoft basically giving up on the phone market.
Windows 10 is not necessarily dead. As you know, it also runs on desktops and laptops.
But here's something else. Interesting
So a hybrid device would be something like a tablet, where you attach a keyboard and a mouse and it basically becomes a laptop.
Windows eight, Microsoft's first operating system with a touch interface, was a big commercial flop.
Um, Windows. Tendo is much improved on. The current version is still
outsold by IOS and Android as faras phones and tablets go, But
Windows 10 blurs the difference between mobile and desktop operating systems and could end up dominating the tablet slash laptop market that is thes hybrid devices.
As an example, Microsoft's surface tablets are as powerful as any laptop can run any Windows application,
and we'll easily convert between a tablet on
Now I just want to take a moment to talk about. Lennox
Lennox began in 1991 as a personal project by a Finnish student called Linus Torvalds, her bum pronouncing his name right,
and the project was to create a new free operating system.
Since then, it has become increasingly popular and is actually much more widely. He's used than you might realize, and we'll get to that in a minute.
Many programmers have freely given up their time to develop many different versions of Linux.
On many of these, the next versions are free,
and although it was originally developed with a command line interface,
many people have developed graphical shells for it.
A popular version of Lennox with a graphical interfaces Lubutu,
that's I'm told. It's correct pronunciation, although it's spelt a bun, too. I don't guess it matters what you use.
As you can see, it looks similar to Windows or our ***.
It even comes with some free office applications,
something called Libre office,
which is an office suite similar to Microsoft Office. So it includes word processing, spreadsheet, presentation software and so on.
On Lennox is actually far more widespread than you might realize.
Many operating systems are built on the basically Nick's Colonel. Now we're gonna talk about what a colonel is in a minute.
Specifically, Apples, OSX
and Google's Android
and Chrome OS are all built on linens
term. You should learn for the exam, by the way, his destruct
different versions of Linux so now are known as
distributions and destroyed was short for distribution.
So what is this, Colonel?
Well, at the heart of every operating system
fits the Colonel,
and this is if you like the big boss. It manages and schedules everything else that's running within the operating system.
It can even shut down the operating system. If
system becomes unstable or security has been compromised.
I'll bet a few of you have seen the Windows blue screen of death.
This is where in your system crashes and a blue screen appears.
You may also have if you work with Lennox, seen what's called the group's screen, which is
the linen is equivalent of a windows blue screen.
What's going on in either of those cases of this? The colonel is still running.
The colonel has determined that something is either destabilized the system
or compromise security, and it initiates a controlled shutdown of the operating system.
And that's why you're getting that blue screen off the up screen. Because you think about it. Something must be generating those screens, and it is the colonel.
Many other programs also run. These are known as service is on their included within the operating system and they managed by the colonel.
For example, Windows devices run a service called the Workstation Service.
This allows them to connect to other devices on the network.
This service starts up during boot up and is managed by the colonel.
The colonel also communicates with hardware using programs known as drivers, and we'll talk more about those in a minute.
So the linens colonel is bundled with different service is different utilities and interfaces
for all these different destro's.
In other words, all these different versions of Lennox that are available
that same essential colonel, but with different service in different utilities and different interface is available for them.
And a minute ago I mentioned drivers. So let's just talk about those drivers. Are programs that tell your operating system how to interact with hardware.
For example, you need a driver for your keyboard and a driver for your mouths and a driver for the printer. And so,
if you can't find
or can't install a driver for a particular piece of hardware,
the operating system will not be able to access it, and you won't be able to use that device.
Bear in mind, though, drivers are specific to the specific hardware that you have as well. With the specific operating system and even the version of the operating system,
you might have a driver for a keyboard for Windows X P.
There is no guarantee that that same driver will work refuse the same keyboard, but with Windows 10
so drivers can be very
finicky. They have to be the right driver for that bit of hardware for that operating system For that version of the operating system,
these drivers are usually produced by the hardware vendor who produced the piece of hardware,
and they make it available to you in a couple of different ways that I have it available on their website. Then they ship it to you. Along with the hardware on the CD,
many drivers get uploaded to Microsoft's
online driver depository,
and when you've done Windows update, it will check on that repositories. You see if there's any drivers available that it needs.