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Cloud computing is the delivery of services through the internet with the use of a cloud based remote database. Cloud computing helps businesses with cost savings, productivity, speed, efficiency, performance, and security. There are different types of clouds which include public clouds, private clouds, and hybrid clouds. In addition, there are also three services in cloud computing which are; software-as-a-service which provides the user with a pay as you go model, infrastructure-as-a-service, which provides the user with services via IP addresses, and platform-as-a-service which is a platform delivered via the internet. There are both pros and cons when it comes to cloud computing. Some pros include the ability to use the software from any device, cost savings, and storage utility. On the other hand, some cons include security concerns, internal bugs, and power outages.

I also read this article just for a better understanding of the cloud and to really dive deep into the good and the bad, because as we know you can't have the good without the bad. I didn't realize the many different types of cloud computing so that was interesting to read.

Hello Alejandra, This is another great article that you have posted, thank you! Although I have been doing a lot of reading this week on Cloud Computing, I was truly enlightened by some of the information in this post; for example, Cloud Computing offers both public and private services, coupled with a Hybrid option that allows more flexibility and helps optimize the user's infrastructure and security. Further, creating and testing apps, and audio and video streaming were highlighted in this article, unlike others that I have read. Moreover, it broke down the functions of the components of the system (SaaS), infrastructure-as-a-service (IaaS), and platform-as-a-service (PaaS). Equally, some disadvantages stood out to me, like if the encryption key is lost, the data disappears. The geographical reach of cloud computing cuts both ways: A blackout in California could paralyze users in New York, and a firm in Texas could lose its data if something causes its Maine-based provider to crash. Additionally, with many individuals accessing and manipulating information through a single portal, inadvertent mistakes can transfer across an entire system. In closing, I have noticed that overall the benefits of Cloud Computing can tremendously assist companies in many ways, but some of the disadvantages can have a catastrophic impact on businesses and their operations. Shineal

The positive of cloud computing have it's benefits as it helps to establish business for what they are today by maintaining by the provider, self-service through web, pay for service use only and near limitless scalability. The could computing services can be divided into 3 types: Infrastructure, Platform and Software.

This article focuses overall on the explanation of what is green computer science and several different ways for you to practice that very same thing. Green computer science is definite as "the study or practice of eco-friendly computing or IT." This type of computing, while growing around the world and being a large part of the overall energy consumption, the problems with that grow as well. With the e-waste that comes with computing, green or otherwise, it is becoming more important than ever to try and find other ways of eco-friendly computing in order to combat the a,punt of e-waste that is produced as a result of the computing. The article highlights 3 different ways of eco-friendly to make sure you are doing your part and it also includes a symbol or brand to look for to make sure that the computer you do use or plan to use is eco-friendly as well. The secondary ways are as follows: 1. Dynamic power scaling which is a technique that allows a drastic reduction in the working rate or frequency of a microprocessor or link interfaces to reduce energy consumption and generation of heat by the chip. 2. Virtualization is a modern IT paradigm which allows separation of technology implementations and computing functions from physical hardware, while cloud computing is virtualization of computer programs via the internet. 3. Using terminal servers is a green computing technique that allows multiple users to connect to a central server, which performs all the processing; however, each user experiences the system on his or her terminal. Finally, the brand or symbol to look for on the computer to make sure that it is eco friendly and consume less power is the Energy Star located on products. In addition, it's not just for laptops; it's for computer monitors, printers, and desktops as well.

One of the major issue of cloud computing is encryption, which is the process of transforming information to make it unreadable to others users.  Encryption arises as a problem in cloud computing because not all the companies that are providing the service of cloud computing but not the encryption services which is very important for the safety on the data of the customers. When choosing to use cloud computing, it is important to find out al the services that the cloud offers because without the encryption services, the security of the data also decreased said Subra Kumaraswamy a senior security manager at Sun Microsystems INC.   Another issue when it comes to cloud computing is authorization because not all providers can control who can access their data, which make the data vulnerable to hackers.  In my opinion before someone decide to use the cloud computing it is important that the customers make researchers about the feature  and services that the cloud is using to make sure that is the best option for the company 

This article gives examples of the various types of cloud computing and their advantages and disadvantages. It shows that there are cloud-based options that can be appropriate for every business.

This article discusses "Hotel Computer Networks". The author keeps information brief but informative.Highlights include, explaining the point of a computer network and how such communication is made possible. "Hotel Computer Networks are used to: Facilitate communique via electronic mail, video conferencing, immediate messaging, etc." The article concludes by highlighting the various varieties of computer network's used in hotels i.e. Local Area Networks, Personal Area Networks and Campus Networks.

Green IT is an aspect of technology that many people do even consider when thinking about sustainability. According to Computer Aid International, "The production of a computer requires 22kg of toxic chemicals, 240kg of fossil fuels and 1,500 kg of water. 80% of life-cycle energy use is accounted for before we even switch a PC on for the first time." This statistic alone should be enough for us to take action. Marriott has started taking action, however. They created an underground data center where the power consumption goes down and efficiency goes up. Cloud computing is also a massive help due to the fact that the physical software wont be on the desktop computers or laptops being operated so the power consumption will be lowered there as well.

Green IT is an aspect of technology that many people do even consider when thinking about sustainability. According to Computer Aid International, "The production of a computer requires 22kg of toxic chemicals, 240kg of fossil fuels and 1,500 kg of water. 80% of life-cycle energy use is accounted for before we even switch a PC on for the first time." This statistic alone should be enough for us to take action. Marriott has started taking action, however. They created an underground data center where the power consumption goes down and efficiency goes up. Cloud computing is also a massive help due to the fact that the physical software wont be on the desktop computers or laptops being operated so the power consumption will be lowered there as well.

This article focuses on the importance of having green IT in business. It shows example of other hotels that have already adopted green IT. Not only this but it offers tips for businesses that are looking to adopt green it. It highlights the issue of recycling computers instead of reusing it . They recommend to use the appliance until it doesn't work.

Nowadays, cloud computing is widely applied in the hotel industry. Cloud(s) are made up from computers, always linked or networked together as computer farms. There are many pros and cons associated with cloud computing and solutions. The Pros: Cloud computing has lower start-up costs and not much equipment to purchase. Hotels do not need to hire many IT staffs to maintain the equipment, and not need to pay for future hardware upgrades. The Cons and solutions: Security and cost are the major concern for hotel management. Paying attention to your usage and manage usage routinely can keep your bill in a reasonable price. Cloud computing service companies provide different levels of quality and services. Thus, finding a reliable service provider is a tiring and time-consuming job.

This article talks about the efforts computer companies are making to reduce the negative environmental results of traditional technology equipment. There are more than 60 electronic devices from companies like Dell and HP that are becoming apart of the U.S. Environmental Protection Agency. This is a funded project called EPEAT that has the goal of identifying environmentally friendly computer equipment that still outputs the same level of performance for the customer. This new "green" certification system even provides a list online of the products that meet the standards. EPEAT allows customers to rank computer electronics by their environmental. There are 23 required criteria and 28 optional criteria involved in the rankings. The optional criteria determines if the product is EPEAT Bronze, Silver, or Gold. These standards include having lower levels of lead, mercury and cadmium as well as being more energy efficient so they reduce emissions put into the atmosphere to help reduce the levels of greenhouse gases. These products are also more simple to upgrade and have recycled… businesses actually have to provide safe ways to recycle the products they sell when the customer can no longer use them. Manufacturers think having an even playing field for the customer to be able to view their products by environmental aspect is better and are proud to be apart of something so beneficial to the environment. The EPEAT program was expected to reduce 13 million pounds of hazardous waste and 3 million pounds of non hazardous waste.

This article discusses what Green Computing is and how it is being used. This environmental friendly resource should be the future on how we preserve used technology. Everyone should be more aware on how to promote green computing to make this world a much sustainable place.

The aim of this article was to explain what cloud computing is and how it works. The article provided a lot of great information and clarity on the concept and how it can be used by individuals and businesses alike. It also provides a list of pros and cons to cloud computing.

Cloud computing is like the icloud, basically having the data in one location that everyone can have access too. The amazing feature and benefits in my personal opinion is the ability to have an entire department work on a spreadsheet together and have access to the same information.

Due to increasing weight being given to to environmental and social impacts of business, greener computing alternatives are becoming more and more attractive. Going green computer-wise includes more than using green materials in production. It also extends to reduction and control of energy during production and use as well as disposal and reuse of devices.

Green computing (also known as Green IT) is a concept and/ or action, which was launched in the early 1990's after realizing that the planet is not an endless source of energy. Creating, distributing, maintaining, and most importantly, disposing machinery related to technology has become the focal point of Green IT. So, the "whole life" of the IT equipment plays a vital role concerning its objective/ aim of having a positive impact on the environment. Additionally, targets of this program include curtailing energy consumptions, raising awareness and utilization of green energy, properly disposing equipment, reducing footprint, reuse/ refurbish/ recycle, and more.

This article talked about the advantages and disadvantages of cloud computing. Some advantages include the accessibility, savings, security, the world-wide access, the data backups, etc. The disadvantages mentioned were the vulnerability to attack, meaning hackers can potentially access your data from the internet. Also, since cloud computing depends on the internet, there can be issues when the wifi is working properly.

Highlights: 1) Computers are used extensively by lodging managers and their assistants to keep track of guests' bills, reservations, room assignments, meetings, and special events. In addition, computers are used to order food, beverages, and supplies, as well as to prepare reports for hotel owners and top-level managers. 2) As for front desk, these computers have an intricate soft ware called the Property Managemen System (PMS) to do all the check ins, guest accounting, and etc. 3) In the restaurant, lounge, or bar is a new computer entirely called a Point of Sale System (POS). This will collaborate with a PMS to bill guests for a meal and etc, but can also be used as a cash register. 4) The computer in the sales office, which software is most likely DelPhi which is a booking terminal. 5) Nowadays hotel without a computer is like a bank without a vault. 6) The PMS may interface with central reservation system(CRS) and revenue or yield management system.

This article talks about the various types of computer systems in the hospitality industry, as well as their usage and benefits. Most of the common computer systems in the hospitality industry are PMS, POS, CRS, and DelPhi. A computer systems may be link to another to ensure streamline process. For example, the POS system at a hotel's restaurant can be linked to the PMS system at the front desk. That way, the guest's restaurant bill can be directly charge to his/her folio. Most of the large hotels do use computer systems. As the author mentioned, "a hotel without a computer is like a bank without a vault." In my opinion, hotels will not be able to deliver exemplary guest service without inventing in computer systems in today's competitive market.

"Green computing, also called green technology, is the environmentally responsible use of computers and related resources. Such practices include the implementation of energy-efficient central processing units (CPUs), servers and peripherals as well as reduced resource consumption and proper disposal of electronic waste (e-waste). One of the earliest initiatives toward green computing in the United States was the voluntary labeling program known as Energy Star. It was conceived by the Environmental Protection Agency (EPA) in 1992 to promote energy efficiency in hardware of all kinds. The Energy Star label became a common sight, especially in notebook computers and displays. Similar programs have been adopted in Europe and Asia."

SUMMARY: This article by Bernard Ellis talks about the benefits of cloud computing and how it is being used in the hospitality industry. Hotels were previously wary about using cloud computing, but are slowly realizing that this technology has the ability to improve not only their operations, but also customer service and revenue. Ellis believes that limited-service brands, like a Courtyard by Marriott are part of the reason why hotels started looking into cloud computing. Brands like Courtyards do not have the means to spend significant amounts of money on technology, unlike their full-service counterparts. This sometimes means these hotels are at risk for not receiving necessary updates. Cloud computing enables hotel chains to offer access to systems, not previously made available to limited-service brands and also franchisees, both of which are crucial to the hotel chain's success. Hotels were previously concerned about their ability to maintain security and safety of systems within cloud computing. Now the concern has turned to change management. Changes and updates happen faster through the cloud platform and hotels have to figure out the best way to ensure staff is on top of all changes that take place. According to Ellis, the answer to this problem is learning management platforms, which are technology-based and more cost-efficient. Having technology-based learning platforms makes training easier and gives hotels the ability to update the training regularly based on any changes that take place. By utilizing cloud computing and learning management platforms, hotels will be able to improve operations, improve customer service, and streamline revenue.

This article lists pros and cons of Cloud Computing for Hotels. What is surprising is that Cloud Computing can be costly as opposed to the common belief that Cloud Computing is a great cost saver. According to this article, if your IT resource pool is too big, it is less likely that you'll see any enormous financial advantage in outsourcing to the cloud. In addition, there is a method being used by hackers to increase your Cloud usage significantly and make you end up paying a lot for it. The method is called DDoS(Distributed Denial of Service). Even a low-level of this can keep your server busy and give you an enormous bill. Sure, these problems can be prevented and benefits of Cloud Computing can outweigh them. However, this technology is quite new, you need to think strategically before you pounce on  it.

This article introduced the result of a survey for the adaptation of cloud computing global wise. 68% of the global organizations want to adapt this new tech but 51% have concerns that their old system may not be enough for the adaptation.  Then the article describes the pros and cons with cloud computing and solutions for hoteliers.  The pros are : no need to buy many expensive hardware, lower maintenance expense and software installing and updating fee, Cons: security, which is the biggest concern, redundancy, and other things. 

Like the tittle said, this article introduced some basic methods to keep data safe when connecting to public wireless hotspots. The author pointed out that whenever we connect to public Wi-Fi hotspots, most single piece of data can be picked up by anyone within range of the same network. It is very important to keep our data safety especially in the public place. The author introduced ten methods to protect data safety. It included turn off "auto connect", don't share files on computer, get a 3G or 4G adapter, create your own secure connection with a VPN, connect securely to your home PC, then connect to sites you need, firewall your computer and so on. During introducing the methods to protect the data, the author also told basic knowledge about how the data will be picked up by others.  In the part of don't share files on computer, the author pointed out that many people choose home network when they are connecting into public Wi-Fi which can let other people stole the sharing files. Also the firewall for the computer is really necessary to protect the data in the computer. Finally, the author told an easiest implementation which is restrict what you do on Wi-Fi. People should not do anything on Wi-Fi that you wouldn't want to share with anyone else like bill payments. It can let other people know your account and password when you make payments through public Wi-Fi.

The integration of software and Hardware is what makes any type of system function. A computer system has various hardware components. The motherboard, which allows all hardware components to connect and interact with each other. The Processor, performs all calculations and actions. Ram, provides the processor with data. And finally the hard drive, which stores all the software and personal data. On the other hand, the software is what allows any device(computer or electronic device) to operate. In the case of a computer it requires an operating system to function.Windows and Linux are two forms of operating systems. Hardware can't exist without software or viceversa.