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Cloud Computing Models

Cloud computing is available in three different ways that each satisfy a different need. These services are called Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS).

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  Software as a Service (SaaS)

  Software as a Service is the most commonly used Cloud computing service. It allows users to access software applications over the internet. SaaS applications are hosted by the provider and accessed by users through a web browser or mobile app.

  Popular SaaS applications include Google Apps, Salesforce, Microsoft Office 365, and Adobe Creative Cloud.

  SaaS applications are typically priced per user or month and provide a range of features and functionality that allow users to perform common tasks.

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  Platform as a Service (PaaS)

  Platform as a Service is a Cloud computing service that allows developers to create, test and deploy applications over the internet. PaaS applications are hosted by the Cloud provider and accessed through a web browser or mobile app.

  PaaS services provide an environment where developers can write, test and deploy their code without having to install any software on local servers or devices. Cloud computing providers often offer additional features such as collaboration tools that allow multiple users to work together in real-time.

  Cloud providers typically charge developers for the amount of server time they use to run their applications and services or by offering a service free with limited features that require users to upgrade if they want access to additional functionality. Developers are also charged extra fees when traffic reaches specific thresholds.

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• 4

  Infrastructure as a Service (IaaS)

  Infrastructure as a Service Cloud computing service allows users to access infrastructure and servers that run on Virtual Machines. IaaS is typically used by businesses for Cloud Computing applications such as email, file storage, and running web services. Cloud providers host their Infrastructure on dedicated machines which can be accessed via the internet at any time of day or night. Cloud Computing providers typically charge users for the amount of storage and bandwidth they use.

  IaaS Cloud computing can be used to create a private Cloud on hardware already owned by an individual or organization such as servers, computer systems, and other devices that require internet connectivity.

  Cloud providers also allow businesses to purchase dedicated machines which are hosted in Cloud data centers and accessed by Cloud Computing users through the internet. Cloud providers often allow businesses to rent specific amounts of storage, processing power, and bandwidth for their dedicated Cloud servers which they can also use to run Cloud Computing applications such as email or file-sharing services.

  IaaS Cloud computing allows organizations to quickly create new systems and deploy additional hardware when their needs increase. This can be done without the need to purchase and install new hardware, which can take weeks or months to complete.

Cloud Computing Advantages

Cloud computing provides a number of advantages for both individuals and businesses including:

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  Cost savings

  Cloud computing services are often more cost-effective than traditional software applications that need to be purchased and installed on local devices. Cloud services are typically priced per user or per month and provide a range of features and functionality that allow users to perform common tasks.

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  Increased efficiency

  Cloud computing allows businesses to access the latest software applications, tools, and technologies without having to purchase and install them locally. This can help businesses improve their efficiency and productivity and allow them to focus their resources on providing the best Cloud Computing services possible.

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  Reduced downtime

  Cloud computing can help businesses minimize downtime as they don't need to purchase additional hardware in order to support new Cloud Computing applications or if existing equipment becomes faulty or outdated. Cloud providers host all Cloud data and users access it via the internet. Cloud services are usually designed to be fault-tolerant and Cloud Computing providers invest significant resources into ensuring they provide the latest Cloud technologies.

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  Reduced IT costs

  Cloud computing helps businesses reduce their internal IT costs as they don't need to purchase additional servers or hire full-time staff in order to manage them, allowing companies who might not have large budgets to take advantage of Cloud technologies.

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  Increased mobility

  Cloud computing allows users to access their data and applications from any device that has an internet connection. This can include desktop PCs, laptops, smartphones, and tablets.

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  Scalability

  Cloud computing allows businesses to quickly scale up or down their usage as their needs change. For example, a Cloud service might be limited to 25 Cloud Computing users during off-peak periods but can scale up to meet the needs of more than 200 Cloud Computing users when required.

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  Reduced complexity

  Cloud computing helps businesses simplify their IT infrastructure by providing them with on-demand applications that are hosted in Cloud data centers. Cloud providers manage all technical aspects, allowing organizations to focus on their core business activities.

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  Greater flexibility

  Cloud computing provides businesses with the ability to access a wide range of applications and services that can be tailored to meet their specific needs. Cloud providers offer a variety of service plans and pricing options that allow businesses to select the right combination of features and functionality for their unique requirements.

Cloud Computing Disadvantages

Cloud computing also has a number of disadvantages which include:

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  Data security and privacy concerns

  As Cloud data is stored on remote servers, there are concerns that this data may be accessed or stolen by unauthorized individuals. In addition, many Cloud providers use proprietary software and applications which can limit transparency and the ability for Cloud Computing users to access their data.

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  Reliability concerns

  Cloud computing relies on the internet and, as such, is vulnerable to network interruptions that may result in downtime or slow response times. Cloud providers work hard to ensure they provide high levels of uptime but there are still risks involved with Cloud services that can't be completely eliminated.

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  Limited control

  Cloud computing users typically don't have complete control over their data or the applications they are using. Cloud providers manage all aspects of the service, including software upgrades and security patches. This can be a concern for businesses that need to maintain tight control over their IT infrastructure and operations.

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  High costs

  Cloud services can be expensive and Cloud Computing users may need to pay additional fees in some circumstances. For example, Cloud computing users often need to buy their hardware or software licenses which can add significant expenses upfront. Cloud providers also offer different service plans so businesses will want to carefully review the costs involved with each option before making a purchase decision.

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  Expertise required

  Cloud computing uses a number of new technologies which means Cloud Computing users will need to have some technical expertise or training in order to make the most out of Cloud services. Cloud providers typically offer different plans based on experience levels and businesses should select their Cloud service carefully as this can limit how they implement Cloud technology within their organization.

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  Career path concerns

  Cloud computing is a rapidly changing technology and, as such, the skills required to be successful in this field may change over time. Cloud Computing users who want to stay ahead of the curve will need to invest in continual learning and professional development in order to keep up with current trends and technologies.

There you have it! The key advantages and disadvantages of Cloud computing. As you can see, there are pros and cons to both using Cloud services and not using them. It's important to carefully consider your business needs and IT infrastructure before making a decision about whether or not to move to the Cloud.

If you're still unsure about what Cloud Computing is or how it could benefit your organization, Cloud computing experts are available to help. Cloud providers offer a range of services and plans so it's important to review your requirements carefully before making a decision about whether or not Cloud Computing is right for you.

Cloud services can be expensive and Cloud Computing users may need to pay additional fees in some circumstances. For example, Cloud computing users often need to buy their hardware or software