Basic Principles of Cloud Computing: Computer Science

LECTURE NOTES BASIC PRINCIPLES OF CLOUD COMPUTING Cloud Computing forms a paradigm in information technology in which hardware and software components are outsourced to vendors/organizations outside the company's internal IT infrastructure. Cloud users can use different applications that would otherwise be installed on their computers on conventional systems. Cloud Computing uses XaaS principles. Services such as physical databases, software for communication are focused on the cloud and are used locally.  Cloud Computing Relevance to SEO (Search Engine Optimization)  Security  Reduce Downtime  Advanced Security  Disaster Recovery  Evidence of "accident"  Consider Cloud Needs The basic concept of Cloud Computing includes 3 (three) types of services, namely: 1. Infrastructure as a service Namely the basic concept that was first available, this IaaS implementation is mostly done in the use or leasing of networks for Internet access. 2. Platform as a Service The basic concept of PaaS is almost the same as IaaS. It's just that the difference lies only in its usage, PaaS is used in the operating system and the supporting infrastructure. 3. Software as a Service That is the basic concept of Cloud Computing which is the latest and more important than the previous basic concept, because it is assisted by special software and applications. The best Cloud authentication method depends on preference users, namely: 1. API Keys This method does not require client libraries and is transparent to the user. This method identifies projects by creating strong associations between keys and projects 2. Firebase Authentication This authentication type provides backend services, application SDKs, and libraries for authenticate users to mobile or web applications. 3. Auth0 Authentication This strategy not as it were confirms and authorizes applications and APIs, but moreover stack, gadget, and character rationalist. 4. Google Authentication This authentication method allows users to authenticate by logging in with their Google account. 5. Google Authorization and Service Accounts With this method, JWTs can be created and signed using service accounts and client libraries provided by Google for the Google Cloud Platform project. Several authentication problems in Cloud Computing are as follows :  Privacy Issues  Lack of Transparency  Security Issues  Possible Exploitation of Authentication Mechanisms  Different Authentication Technologies Present Challenges to Users/  Customer. In general, computational science is a field of science that is concerned with the preparation of mathematical models and numerical solving techniques and the use of computers to analyze and solve scientific (science) problems. Modern computing is a system concept that receives instructions and stores them in a memory, memory here can also be from computer memory. In modern computational work, calculating and finding solutions to existing problems, and the calculations carried out include:  Accuracy (big, Floating point)  Speed (in Hz)  Large Volume Problem (Down Sizzling or parallel);  Modeling (NN & GA)  Complexity (Using big O Theory). Modern computing is divided into three types, namely mobile computing (mobile), grid computing, and cloud computing (cloud). Further explanation of the types of modern computing as follows:  Mobile Computing  Grid Computing  Cloud Computing