Cloud computing is internet-based computing, whereby shared resources, software, and information are provided to computers and other devices on-demand like the electricity grid. It is also defined as the delivery of computing services from a remote location. The cloud represents the internet. Basically, it is a global network of servers around the world acting as one massive hard drive. So if you’re going through emails, checking files in the Dropbox, or streaming a movie on Netflix remember you’re doing it off the cloud.
Cloud as a companion
Before the cloud, you might have backed up your documents on a CD, pen drive, or your computer and mostly run out of space. Now you can back up all of that information to the cloud. Say if I back up my phone’s data on the cloud, it’s pretty much safe there. So, if I lose my phone I can always access the files from another device.
Benefits for a company
A company has to have multiple servers, maintain data handling, look after its employees, and also ensure service upgrades.
What the cloud does is, it reduces workload, investment, and also saves time. Cloud computing also is the best way for start-ups to grow.
Organizations of every type, size, and industry are using the cloud for a wide variety of use cases, such as data backup, disaster recovery, email, virtual desktops, software development, and testing, big data analytics, and customer-facing web applications. Instead of buying, owning, and maintaining physical data centres and servers, you can access a wide range of technology services on an as-needed basis from a cloud provider like amazon web services.
Private and public clouds
There are two types of ‘clouds’:
A private cloud consists of computing resources used exclusively owned by one business or organization. In a private cloud, the services and infrastructure are always maintained on a private network and the hardware and the software are dedicated solely to one organization. Private clouds are often used by government agencies, financial institutions, and other mid-to-large size organizations.
The public cloud refers to a common cloud service made available to multiple subscribers. Public cloud deployments are frequently used to provide web-based email, online office applications, storage, and testing and development environments. Some examples are Amazon Web Services, Google Drive, and Microsoft Azure.
Application of Cloud Computing
(I)In the Gaming Industry
The Gaming industry uses the cloud to deliver games and provide a better experience for gamers around the world.
(II)In the Medical Industry
The Medical industry is using the cloud to develop personalized treatment for the patients and help them save more lives.
(III)In the Financial Industry
The Financial industry uses the cloud to power real-time fraud detection to prevent threats and cyber-attacks.
Types of Cloud Services
Disadvantages of cloud computing
A data breach is a security incident in which information is accessed without authorization. Data breaches can hurt businesses and consumers in a variety of ways. And as a matter of fact, the security of the cloud is good to survive a few cyber-attacks but fails to survive the tough ones.
Server crashes occur when a website, software application, or operating system stops functioning and does not get displayed. Servers are nothing but hardware infused with a lot of software programs incorporating lists of codes necessary to make data (website/application) available for users. This occurs frequently and also causes huge losses for companies.
(III) Network Connection Dependency
To reap the benefits of cloud computing, your business must always have an internet connection. Unfortunately, there is no way to get around this fact. You need a network to send files to the cloud and retrieve them. You need a network to be able to use your virtual machines even if you opt for an IaaS, Infrastructure-as-a-Service. If you lose your network connection because of a storm or an outage, you may experience some downtime.