Overview of “Backup””
• Backup is the activity of copying files or databases so
that they will be preserved in case of equipment failure
or other hazard.
• It’s a routine part of the operation of large businesses
with mainframes as well as the administrators of smaller
• Personal computer users, backup is also necessary but
often neglected. The retrieval of files you backed up is
called restoring them.
Old ways of backup systems
• Backing up critical files to diskettes in the build in hard
External Hard Disk
• Is a common usage of external device to help backing up
files and retrieving data. But some of them should be
connected to electricity and the new way by using the
USB. The capacity diverts starting from 250MB to
iCloud V 2.1
What is Cloud Computing ????
Cloud computing is Internet-based computing, whereby shared
resources, software, and information are provided to computers and other
devices on demand.
Cloud computing provides computation, software, data access, and
storage services that do not require end-user knowledge of the physical location
and configuration of the system that delivers the services.
Characteristics of a Cloud Environment
• Dynamic- One of the keys to cloud
computing is on-demand provisioning
• Massively scalable- The service must
react immediately to your needs
• Multi-tenant- Cloud computing, by its
nature, delivers shared services
Characteristics of a Cloud Environment
• Self-service - As a user, you can use
the service as you require
• Per-usage based pricing model - You
should only ever pay for the amount
of service you consume.
Types of Cloud
• Public Cloud – Available to the general public or
large industry group and is owned by an
organisation selling cloud services
• Community Cloud – Shared by several
organisations and supports a specific community
that has shared concerns
• Private Cloud – Operated solely for an organisation
• Hybrid Cloud – Combination of two of the above,
they remain unique entities but are bound
together by standardised technologies
What is iCloud?
• iCloud stores your music, photos, documents, and more and wirelessly
pushes them to all your devices. Automatic, effortless, and seamless.
• iCloud is so much more than a hard drive in the sky. It makes it quick and
effortless to access just about everything on the devices you use every
• iCloud automatically and securely stores your content so it's always
available to your iPhone, iPad, iPod touch, Mac, or PC. It gives you access
to your music, apps, latest photos, and more from whichever device you
happen to be using.
• keeps your email, contacts, and calendars up to date across all your
devices. No syncing required. No management required. In fact, no
anything required. iCloud does it all for you.
How to use iCloud?
Running the application
• Cloud Backup automatically and securely backs up your most important information to
iCloud daily over Wi-Fi whenever your iOS device is connected to a power source. Once
you plug it in, everything is backed up quickly and efficiently. iCloud already stores your
purchased music, TV shows, apps, books and Photo Stream; iCloud Backup takes care of
everything else, backing up your photos and video in the Camera Roll, device settings,
app data, home screen and app organization, messages and ringtones. iCloud Backup
can even help you set up a new iOS device or restore the information on one you
iCloud Backup your:
• Purchased music, TV shows, apps, and books
• Photos and video in the Camera Roll
• Device settings
• App data
• Home screen and app organization
• Messages (iMessage, SMS, and MMS)Ringtones
Advantages of Cloud Computing :
There are many ways in which the concept of cloud
computing has advantage over the other types of computing .
The four main advantages of cloud computing which
have proved very much useful to the mankind over the decade
are as follows…
4. More Mobility :
Employees can access information wherever they are,
rather than having to remain at their desks.
Real Time Applications :
Real time applications of cloud computing includes one of the most
widely used concept of Google cloud printing which provides
printing on the go.
Cloud computing is an online form of computing , where a user
can access applications via a browser while the application is
installed and stored on a server. This is a new form of computing
in which thousands of users all around the world can access
something without downloading and installing anything on their
laptops or personal computers.
Notas del editor
Now rather than try to describe the cloud by way of a definition that no one can seem to agree on, why not define the cloud by its characteristics?
For example, a cloud environment needs to be
Dynamic – one of the keys to cloud computing is being able to size the on-demand provisioning
Massively Scalable – the service must either expand or contract depending on the changing needs of your business
Multi-tenant – cloud computing by its very nature delivers shared services to a global group of users
In addition cloud based environments offer
Self-service delivery of applications and content - so as a user, you can use the service as you require it
Per-usage based pricing model – which means that you should only ever pay for the amount of service you actually consume. This is extremely useful if you are working on a project by project basis, you can effectively use the service as and when you actually need to use it.
IP based architecture – cloud architectures are based on virtualised, internet based technologies, this alone has provided one of the key reasons why cloud computing environments have become so popular and has changed the way in which IT infrastructures are deployed.
Now over the last couple of years, there have been a number of ways in which cloud environments have been deployed, each having differing levels of security applied to them and each offering different services to the users who are connected to these particular cloud environments.
Public Cloud – Available to the general public or large industry group and is owned by an organisation selling cloud services
Community Cloud – Shared by several organisations and supports a specific community that has shared concerns
Private Cloud – Operated solely for an organisation or company
Hybrid Cloud – Combination of two of the above, they remain unique entities but are bound together by standardised technologies