Understanding Cloud Computing, Type, How it works, Advantages and Disadvantages
Heard of cloud computing may just be still feels less familiar to you. While it may be the use of cloud computing is still not so much applied by general users, but for several large companies use cloud computing-based system is already widely used.
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The use of cloud computing began because of cloud-based computing applied votes provide ease and advantage where users could simply just install the operating system on their computers and connect to the internet then she's been able to run applications that need without first installing it on the computer itself. So too with storage of data, all data is stored on the server in the cloud so that despite the damage and computer disaster occurs, the data stored on the server and can be taken anytime and from anywhere as long as the user can connect to the internet. For more details on this will be reviewed under what is cloud computing, cloud computing benefits, how it works, the advantages of using cloud computing as well as some disadvantages of using cloud computing.
What Is Cloud Computing
On a cloud based computing all the tech data is stored on the server and the internet, as well as with applications or software that is generally required of users they are on the server computer. Users must be connected to the internet to access and inside applications that are on the server. In other words, the user can
only provide a computer and internet network devices to be able to connect to internet servers and store data on the server computer without having to provide a large-capacity hard drive on his computer to store its data, as well as the application program say such as Microsoft Office, Excel and other users can run the application on an internet server so there is no need to bother to install the application on their computers on their own. How very nice isn't it?
Some Types Of Cloud Computing Services
There are several types of cloud computing services as described below.
1. Software as a Service (Saas)
Type of Service Software as a Service is a service that provides a ready-made application addressed to the end user (End User). Here the user does not need to make an application or infrastructure. Examples of these services are services such as Hotmail, Gmail, Ymail, Twitter, and Facebook here user won't need to bother making an application ready to use aliases for the paid service, just one example is the use of application Office365, salesforce and others.
2. Platform as a service (PaaS)
This service rent a place to run an application from the user. The service could have been like the provision of operating system, database, framework, which is a platform to run an application. So here the user does not need to do maintenance and preparing infrastructure so that users only focus for building the application. As an example of these services is just like Windows Azure, Amazon Web services, Google App Engine and so on.
3. Infrastructure as a Service (IaaS)
Infrastructure as a Service is a service that provides IT infrastructure to the end user where that service built a cloud-based. These could be physical Infrastructure such as hard drives, memory, network server type, and so on. Cloud providers here only provides the infrastructure based on requests from users. So if a user wants to perform the addition or upgrading of infrastructure he could contact the cloud server providers. Examples of these services such as Amazon EC2, Rackspace cloud, and others.
The Workings Of Cloud Computing
Users who want to access the server either for the purposes of opening, store data or running a program, then the first user must login first and then after login successfully then the user can use cloud server resource such as running a program without the need to install it on the computer itself and also to store data.
The way it works is pretty simple as when users run an application and give a few commands on the application, then the commands in the input by the user will be sent to the server through the internet network will then be processed or in response by the server and provide the results to the users, the process results data will be stored on computer servers, so that each time a user wants to open and view the data that he save the last time, the data will still be available on cloud servers. An example of this case we can see on the use of email like Gmail where users don't need to download and install the application on the computer of his email, but it is enough to connect to the internet, any user can use an existing email applications on the cloud servers.
1 . Data Security
Data security is still a problem to watch out for on the use of cloud system, because all users of a computer connected to the internet network can only access the server cloud, here not not possible intruders or call it cracker computer can enter the server and does damage data, delete data or stealing your data, for that please select your cloud server value is reasonably safe and has good integrity.
2. Privacy
From the privacy or confidentiality of the data, of course even the system used on the cloud servers have implemented data encryption, but still there is a possibility of data you have stored on the cloud servers can be read by other people.
3. Prone to Intruders
As already mentioned in the first point cloud computer data security could be an issue, such as the occurrence of data hacking, the influx of intruders such as viruses/malware into cloud servers can be a problem when your security system applied by the server administrator does not have a crack-prone a.k.a.
4 . Server Down
Cases this one is often a problem on the server computer, in which experiencing server down this can be caused by a variety of things such as load is too high at the same time from a lot of users so as to make the resource server running slow to serve the request. Then the server down could have been caused by unstable internet network on a computer server, so all users who access it will experience the same thing too.
Benefits of Cloud Computing
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| Benefits of Cloud Computing |
The Advantages Of Using Cloud Computing
1. Memory Usage Efficiency
By using cloud computing that has prepared a variety of infrastructure such as storage or software of course here the users no longer need to prepare and think of hard drive capacity are great to wear on his computer, along with the use of software users need not bother buying or looking for a software to install on their computers but simply by using the cloud server everything is ready to use.
2. Flexibility
Because the server cloud is a cloud-based service so users can access them from anywhere as long as he can still connect to the net with more more cloud services make users feel more flexible.
3. Scaleability
The use of cloud services that provides and offers storage in accordance with the request of the user, then the user here can easily perform data management either to reduce or to multiply the data to be stored on the cloud servers.
Disadvantages Of Using Cloud Computing
1. Users must connect to the Internet
With the requirement that users must connect to the internet to be able to access the server and of course the user should provide not only the internet network devices, but users must also pay a fee in accordance with the use of the internet. This is certainly not cheap especially if you do not upload and download large data each time the computer connects to the server, of course you will consume a large internet quota.
2. The cost to providers of cloud servers
If you just store data in small capacity and you simply use some computer applications in the cloud server providers may still give free, but rather if you are either a great resource from the server computer as it stores the data in a very large number of possible cloud server providers require you to subscribe to and pay for your usage.
Such review on cloud computing for we know so that we can take advantage of cloud computing technologies to deploy cloud-based applications and also to secure the data that we think is important so that when natural disasters such as the crash then the data still can we get.