What is an Operating system?
An operating system is a piece of software or a program that
controls all of the hardware that is in the computer such as keyboards,
mouse’s, printers. An operating system is also used to navigate a page so that
you can do whatever it is that you are looking to do on that page. when
clicking on buttons on your screen, it is the operating system is that allows
you to gain access to it for example if you were on the internet and you wanted
to visit a page by clicking on the hyperlink to the page, it is the operating
system that allows you to go on the page and navigate the page. There are many operating system manufacture;
some of the most popular ones would be Microsoft who created windows, Apple who
created mac OSX and Linux who created open source verison.
·
Windows – Windows is
the operating system that is used on all Microsoft computers it is the most
common and most used operating system but it is the most hated because it comes
with a lot of bugs and glitches.
·
Mac OSX – Mac OSX is
the operating system that is used on Apple IMacs and is much different from
Microsoft’s operating system in the way that there is no start button, instead
all of the applications that would be under the start menu are now found in
folders.
·
Open source
–Open source is the operating system that is used with Linux based
machines and it allows the user to write modify the coding behind the operating
system and allows them to put it online for other open source users to download
and use.
Why is an Operating system needed?
An operating system is needed because without an operating
system the hardware can do nothing, in order for everything to work it needs
software. An operating system is used to tell all the hardware what to do and
without it your computer would just be a box doing nothing. The operating system is needed so that you can
do everything that you want to do on the computer such as play games, use the
internet for websites such as face book and YouTube, to use word docs for work
and for people who want to do programming.
How does it enable machine and peripheral management?
An operating system enables machine and peripheral management
by sending instructions to external devices such as printers. External devices
are controlled by the operating system so they must follow any instructions
that they are given for example if someone wanted to print a piece of work the
operating system is what sends that command to the printer. Whenever you get a
new device you will need to install a driver onto your computer so that the
operating system will be able to send it instructions in the future.
How does it enable security?
An operating system enables
security because whenever you start the computer you will be brought to a
password screen where you will be asked to enter a password, this is done to ensure
that all of your files are safe and no one but you can gain access to the
computer. Some operating systems come with built in security measures which are
there to help prevent your machine from getting viruses from the internet or
faulty software, and then there are third party companies such as AVG who you
can buy their security software from so
that can help keep your machine safe from and problems that could occur.
How does it enable file management?
An operating system sorts out your file management by naming
all of your files and saving them in the correct folders, and makes sure that
everything is saved away safely so that nothing goes missing and you are able
to find it all easy.
Jobs of an
operating system:
·
Play games
·
Facebook/YouTube/internet
·
Programming
·
Photoshop
·
Word docs
·
Phone call
·
Transfer music/movies
·
Watch movies
·
Create animations
·
Login security
·
Monitor machine
·
Tells time
·
Monitor external connections
·
Create backups
·
Establish networks
·
Config OS
·
Control h/w
·
Control device drivers
·
File manage/ organised
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