菜单
  
    What is Cloud Computing?Some time back I created a presentation (ppt) for a session on introduction to cloud computing. The PPT slide used will help to understand “what is cloud computing?”. I thought of sharing the PPT with you.40336
    Cloud Computing Origin
    “Comes from the early days of the Internet where we drew the network as a cloud… we didn’t care where the messages went… the cloud hid it from us”
    – Kevin Marks, Google
    “The emerging cloud abstracts infrastructure complexities of servers, applications, data, and heterogeneous platforms”
    - Jeff Bezos, CEO, Amazon.
     What is Cloud Computing?
    Cloud computing is a model for enabling convenient, on-demand network access to a shared pool of configurable computing resources (e.g., networks, servers, storage, applications, and services) that can be rapidly provisioned and released with minimal management effort or service provider interaction. This cloud model promotes availability and is composed of five essential characteristics, three service models, and four deployment models.
    – National Institute of Standards and Technology (NIST) def–v15.
    Cloud Computing – Essential Characteristics
    •    Location Independent Resource Pooling
    •    Measured Service
    •    Rapid Elasticity
    •    On Demand Self Service
    •    Broad Network Access
    Cloud Computing – Service Models
     
    •    Software as a Service (SaaS): Use provider’s applications over a network
    •    Platform as a Service (PaaS): Enables developers to build applications on scalable systems and deploy as a service to customers. (Example: Google App Engine)
    •    Infrastructure as a Service (IaaS): Provide processing, storage, network capacity, and other fundamental computing resources where the consumer is able to deploy and run arbitrary software
    Cloud Computing – Deployment Models
    •    Private cloud: Enterprise owned and operated for an organization only.
    •    Community cloud: Shared infrastructure for specific community.
    •    Public cloud: Provided to the public, generally large-scale.
    •    Hybrid cloud: Composition of two or more clouds.
    Cloud Computing Properties
    Cloud computing consists some or all of the following properties:
    •    Massive scale
    •    Homogeneity
    •    Virtualization
    •    Resilient computing
    •    Low cost software
    •    Geographic distribution
    •    Service orientation
    Cloud Computing Architecture
     
    Cloud Computing – Applications
    SaaS
    •    Applications for Collaboration: email, IM
    •    Online storage: Files, photos, music, movies…
    •    Management: Calendar, project management
    •    Office productivity: Word processor, presentations, spread sheet
    •    Tools: Media player, compression utility, cloud desktop, antivirus
    PaaS
    •    Applications are unlimited. Type of application is limited by the developer’s knowledge only.
    Cloud Computing – Advantages
    •    Simplicity – easy to deploy and use
    •    Pay as you use – pay only for the services you consume
    •    Cost saving – Lesser in-house IT costs
    •    Scalability
    •    Backup and Recovery
    •    Easy to upgrade
  1. 上一篇:JSP技术的发展史英文文献和中文翻译
  2. 下一篇:java spring英文文献和中文翻译
  1. 汽车乘员舱的声振耦合英文文献和中文翻译

  2. 立体光照成型的注塑模具...

  3. 数控机床英文文献和中文翻译

  4. 工业机械手英文文献和中文翻译

  5. 低频振动的铁路车轴的状...

  6. 接头的形状对沥青塞接头...

  7. 数控加工技术英文文献和中文翻译

  8. 中考体育项目与体育教学合理结合的研究

  9. 酸性水汽提装置总汽提塔设计+CAD图纸

  10. java+mysql车辆管理系统的设计+源代码

  11. 河岸冲刷和泥沙淤积的监测国内外研究现状

  12. 乳业同业并购式全产业链...

  13. 杂拟谷盗体内共生菌沃尔...

  14. 电站锅炉暖风器设计任务书

  15. 当代大学生慈善意识研究+文献综述

  16. 大众媒体对公共政策制定的影响

  17. 十二层带中心支撑钢结构...

  

About

751论文网手机版...

主页:http://www.751com.cn

关闭返回