What is cloud computing PDF

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Question 1-What is cloud computing? Answer: In the simplest terms, cloud computing means storing and accessing data and programs over the Internet instead of your computer's hard drive. The cloud is just a metaphor for the Internet. It goes back to the days of flowcharts and presentations that would represent the gigantic server-farm infrastructure of the Internet as nothing but a puffy, white cumulus cloud, accepting connections and doling out information as it floats.[ CITATION Eri16 \l 1033 ]

There are different examples of cloud computing. Google drive is one of them. It’s a pure example of cloud computing. Apple's cloud service is primarily used for online storage, backup, and synchronization of your mail, contacts, calendar, and more. [ CITATION Eri16 \l 1033 ] It’s also an example of cloud computing.

Question 2- What is the difference between ERP and Cloud computing? Answer: There are many differences between ERP and cloud computing. Those are given below in the table:

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ERP On-premises ERP solutions need higher investment up front to purchase and manage the software. If your organization does not have an IT team, you have to hire the right people to manage the system before you deploy it. You can consider Onpremises ERP as capital expenditure. [ CITATION Cli19 \l 1033 ]

Cloud Computing Cloud-based ERP systems are already set up and deployed on the cloud. You normally pay a subscription fee which includes hardware and software costs. Assuming everything else remains the same, this cost is generally lower than the costs associated with an on-premises option in the long run. Using a cloud-based ERP can be considered operating expenditure, where you pay for as long as the services are utilized. [ CITATION

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Customization and mobile accessibility are considering aspects of an ERP system. In the case of On-premises ERP system, it offers a great level of customization. But the process of customizing the Onpremises ERP can delay the implementation process. As the ERP vendor rolls out new software updates and enhancements frequently, your existing system may go passive. The On-premises ERP is not readily available for real-time data monitoring by your employees and stakeholders.[ CITATION Cli19 \l 1033 ] In the case of On-premise ERP system, the organization holds the data security and control over it. But, sometimes due to lack of implementing the adept data security protocols and supervision leads to malicious attacks.[ CITATION Cli19 \l 1033 ]

Cli19 \l 1033 ] In the case of cloud-based ERP system, the VAR (Value Added Reseller) will do the customization according to the company’s requirements. Your Cloud ERP system will be updated automatically with the latest updates and security patches. The end user can avail the Cloud ERP system through native mobile apps.[ CITATION Cli19 \l 1033 ]

In the cloud ERP system, the data is hosted on the vendor’s cloud and can be accessed through a web browser. To safeguard the data companies will opt for encryption methods to enhance the security. The cloud service provider will update your system automatically to make sure that you are working in a secured environment.[ CITATION Cli19 \l 1033 ] Scalability is all about your ERP’s flexibility with Integration is one of the daunting factors the eventual growth of business operations and to consider while choosing an ERP the number of users. Cloud ERP solutions enable a solution. In the case of on-premises, you great level of flexibility despite the increase in the need to pay much attention and time to integrate the new version with the existing number of operations and users. Perhaps, on-site ERP solutions don’t offer the same extent of legacy system. Sometimes, it may go void if the integration process is not done well. freedom for the number of users. Often, you need Whereas, in cloud ERP systems, the service to deploy additional hardware to handle it. [ CITATION Cli19 \l 1033 ] provider will look after the integration process that delivers a seamless working experience for the client and end-user as well.[ CITATION Cli19 \l 1033 ] In the case of cloud-based ERP systems, the The On-premises ERP system needs extensive training and technical support to service provider will support the technical team to manage the IT functions and supports in fixing the the employees for a long time.[ CITATION technical aspects.[ CITATION Cli19 \l 1033 ] Cli19 \l 1033 ] Setting up the infrastructure and deploying Compared to on-premises systems, cloud-based an on-premises ERP system is a timeERP solutions takes less time to deploy. intensive It’s a software. It’s a web. Hardware management is important. Hardware management is not important because

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A user pays all the cost like buying the software, managing hardware, training cost etc. Need to update the new version after a certain time period.

hardware is completely managed by a cloud vendor. A user only pays for services used (memory, processing time and bandwidth, etc.). No need to update the new version. When the provider updates the feature, the entire system will be updated automatically.

Question 3- Write down the advantages and dis advantages of cloud computing? Answer: Advantages of Cloud Computing  Reduced IT costs Moving to cloud computing may reduce the cost of managing and maintaining your IT systems. Rather than purchasing expensive systems and equipment for your business, you can reduce your costs by using the resources of your cloud computing service provider. [ CITATION Ben19 \l 1033 ]  Scalability Your business can scale up or scale down your operation and storage needs quickly to suit your situation, allowing flexibility as your needs change. Rather than purchasing and installing expensive upgrades yourself, your cloud computer service provider can handle this for you. Using the cloud frees up your time so you can get on with running your business.[ CITATION Ben19 \l 1033 ]  Business continuity Protecting your data and systems is an important part of business continuity planning. Whether you experience a natural disaster, power failure or other crisis, having your data stored in the cloud ensures it is backed up and protected in a secure and safe location. Being able to access your data again quickly allows you to conduct business as usual, minimizing any downtime and loss of productivity.[ CITATION Ben19 \l 1033 ]  Collaboration efficiency Collaboration in a cloud environment gives your business the ability to communicate and share more easily outside of the traditional methods. If you are working on a project across different locations, you could use cloud computing to give employees, contractors and third parties access to the same files. You could also choose a cloud computing model that makes it easy for you to share your records with your advisers (e.g. a quick and secure way to share accounting records with your accountant or financial adviser).[ CITATION Ben19 \l 1033 ]

 Flexibility of work practices Cloud computing allows employees to be more flexible in their work practices. For example, you have the ability to access data from home, on holiday, or via the commute to and from work (providing you have an internet connection). If you need access to your data while you are offsite, you can connect to your virtual office, quickly and easily.[ CITATION Ben19 \l 1033 ]  Access to automatic updates Access to automatic updates for your IT requirements may be included in your service fee. Depending on your cloud computing service provider, your system will regularly be updated with the latest technology. This could include up-to-date versions of software, as well as upgrades to servers and computer processing power.[ CITATION Ben19 \l 1033 ] Disadvantages of Cloud Computing  Downtime Downtime is often cited as one of the biggest disadvantages of cloud computing. Since cloud computing systems are internet-based, service outages are always an unfortunate possibility and can occur for any reason.[ CITATION AND19 \l 1033 ]  Security and privacy Although cloud service providers implement the best security standards and industry certifications, storing data and important files on external service providers always opens up risks. Any discussion involving data must address security and privacy, especially when it comes to managing sensitive data. We must not forget what happened at Code Space and the hacking of their AWS EC2 console, which led to data deletion and the eventual shutdown of the company. Their dependence on remote cloud-based infrastructure meant taking on the risks of outsourcing everything.[ CITATION AND19 \l 1033 ]  Vulnerability to attack In cloud computing, every component is online, which exposes potential vulnerabilities. Even the best teams suffer severe attacks and security breaches from time to time. Since cloud computing is built as a public service, it’s easy to run before you learn to walk. After all, no one at a cloud vendor checks your administration skills before granting you an account: all it takes to get started is generally a valid credit card.[ CITATION AND19 \l 1033 ]  Limited control and flexibility Since the cloud infrastructure is entirely owned, managed, and monitored by the service provider, it transfers minimal control over to the customer.[ CITATION AND19 \l 1033 ]

 Cost concerns Adopting cloud solutions on a small scale and for short-term projects can be perceived as being expensive. However, the most significant cloud computing benefit is in terms of IT cost savings. Pay-as-you-go cloud services can provide more flexibility and lower hardware costs, but the

overall price tag could end up being higher than you expected. Until you are sure of what will work best for you, it’s a good idea to experiment with a variety of offerings. You might also make use of the cost calculators made available by providers like Amazon Web Services and Google Cloud Platform.[ CITATION AND19 \l 1033 ]

Question 4-What is Blockchain Technology? Answer: The term "Blockchain technology" typically refers to the transparent, trustless, publicly accessible ledger that allows us to securely transfer the ownership of units of value using public key encryption and proof of work methods. The technology uses decentralized consensus to maintain the network, which means it is not centrally controlled by a bank, corporation, or government. In fact, the larger the network grows and becomes increasingly decentralized, the more secure it becomes.[ CITATION ALY19 \l 1033 ]

Question 3- Write down the advantages and dis advantages of Blockchain Technology? Answer: Advantages of Blockchain technology  Greater transparency Transaction histories are becoming more transparent through the use of blockchain technology. Because blockchain is a type of distributed ledger, all network participants share the same documentation as opposed to individual copies. That shared version can only be updated through consensus, which means everyone must agree on it. To change a single transaction record would require the alteration of all subsequent records and the collusion of the entire network. Thus, data on a blockchain is more accurate, consistent and transparent than when it is pushed through paper-heavy processes.[ CITATION Mat19 \l 1033 ]  Enhanced security There are several ways blockchain is more secure than other record-keeping systems. Transactions must be agreed upon before they are recorded. After a transaction is approved, it is encrypted and linked to the previous transaction. This, along with the fact that information is stored across a network of computers instead of on a single server, makes it very difficult for hackers to compromise the transaction data. In any industry where protecting sensitive data is crucial — financial services, government, healthcare — blockchain has an opportunity to really change how critical information is shared by helping to prevent fraud and unauthorized activity.[ CITATION Mat19 \l 1033 ]  Improved traceability If your company deals with products that are traded through a complex supply chain, you’re familiar with how hard it can be to trace an item back to its origin. When exchanges of goods

are recorded on a blockchain, you end up with an audit trail that shows where an asset came from and every stop it made on its journey. This historical transaction data can help to verify the authenticity of assets and prevent fraud.[ CITATION Mat19 \l 1033 ]  Increased efficiency and speed When you use traditional, paper-heavy processes, trading anything is a time-consuming process that is prone to human error and often requires third-party mediation. By streamlining and automating these processes with blockchain, transactions can be completed faster and more efficiently. Since record-keeping is performed using a single digital ledger that is shared among participants, you don’t have to reconcile multiple ledgers and you end up with less clutter. And when everyone has access to the same information, it becomes easier to trust each other without the need for numerous intermediaries. Thus, clearing and settlement can occur much quicker.[ CITATION Mat19 \l 1033 ]  Reduced costs For most businesses, reducing costs is a priority. With blockchain, you don’t need as many third parties or middlemen to make guarantees because it doesn’t matter if you can trust your trading partner. Instead, you just have to trust the data on the blockchain. You also won’t have to review so much documentation to complete a trade because everyone will have permissioned access to a single, immutable version.[ CITATION Mat19 \l 1033 ] Disadvantages of Blockchain technology  Blockchains use excessive energy Competing miners and giant mining farms burn a disproportionate amount of electricity when compared to the outcome, the creation of the next block. In a world where current energy generation is a climate issue, blockchain processing does not make much sense.[ CITATION Cha18 \l 1033 ]  Mining does not provide network security Many blockchain (especially Bitcoin) proponents argue that miners maintain the stability and security of a blockchain. If there are enough miners this is true. The problem is that miners can combine. If they do they assemble a coven (in Bitcoin’s case, >50% of mining power) they can rewrite or alter the blockchain record. If this is possible, the security of data disappears.[ CITATION Cha18 \l 1033 ]  Scalability remains blockchain’s weakness Bitcoin is the most successful blockchain implementation by numbers of users. Yet just one in every thousand people on the planet use it. Given its (sluggish) transaction-processing speed, significantly increasing the number of active users isn’t practical.[ CITATION Cha18 \l 1033 ]  Blockchain can breed complexity Many view decentralization as blockchain’s raison d’être. Yet blockchain technology – in its current state – possesses limitations. At the same time, existing centralised structures and services will need to adjust to blockchain technologies, if existing investments are to carry

forward. The problem with this is complexity. Think about some of the issues. Take, for example, a blockchain which only holds pointers to records held in conventional databases and/or sidechains). The blockchain may operate with great efficiency and effectiveness – because it has to process so little. But adding an external link, in one or more conventional databases adds more moving parts to fail.[ CITATION Cha18 \l 1033 ]  Proof of work is overkill Proof of work is overkill. This is true even if you discount or ignore energy consumption consideration. Even proof of stake and other solutions use linear blockchains. Their reliance on a single chain becomes an Achilles heel.[ CITATION Cha18 \l 1033 ]

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4.Gadget, C. (2019,March 7). Top 5 Key Differences between On-premises ERP and Cloud ERP solutions. Retrieved from https://medium.com/datadriveninvestor/top-5-key-differencesbetween-on-premises-erp-and-cloud-erp-solutions-5b0836a1506e

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