MIST 2090 1st Edition Lecture 1 Outline of Last Lecture Innovation Creative Destruction Outline of Current Lecture Digital Innovation Computer Architectures Gov Computers The Cloud Stack Cloud Computing Services Handheld Device Trends The Internet of Things Current Lecture Digital Innovation The 4 horsemen of digital innovation Mobile Social Data Cloud o Mobile not just smartphones all kinds of mobile technology o Social Social media facebook reddit linkedin tons of opportunities for these social platforms o Data we have tons of data information data is just unprocessed information like a fact information is when data is processed data o Cloud Backs up super computers not just one center place where internet came from Computer Architectures st 1 generation of first architecture was mainframe architecture perimeter security first IBM 2nd generation of architecture client servers PC s wide area networks and local area networks LANs and WANs These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute 3rd generation of architecture is the CLOUD shared Scalability IT that grows with your business Perimeter security no longer makes sense now object level security Old architectures are more capitally intensive and cloud architecture is more variable Government Computers US gov is moving towards cloud based SOA architecture Gov uses tons of big data centers large carbon footprint cloud is greener and offers scalability lower cost faster greener 3 of nations electricity is used by US gov data centers http www youtube com watch v UorIwPZU eg feature related o watch video for quiz test The Cloud Stack Bottom layer Infrastructure networks computers disks that it all runs on 2nd layer Storage Platform lower level software configurations that allow for people to store data in the cloud or to run their applications in the cloud 3rd layer Making software components available 4th layer application server the actual software applications that are running in the cloud Top layer human interface often a browser but does not have to be a browser for accessing the cloud This cloud stack example of a service oriented architecture Cloud Computing Services SaaS Software as a Service involced providing software via services rather than selling the software and installing it on the company s machines like a client server or mainframe architecture would require Advantages of cloud computing o outsourcing frees you up on your core competencies o SOA Service oriented architecture Services require o SLA Service Level Agreement you buy only what you need o Cost and economies of scale o Improved security Disadvantages of cloud computing o Dependence on network o Dependence on providers o Perceptions of security o Traceability forensics 10 architectural trends but mobile social data and cloud pervade everything Cloud computing services sometimes called web services using outside people to do work and computing such as salesforce com provides you brains outside of your own applications services amazon google docs dropbox Handheld Device Trends Handheld devices o Android 1 handheld mobile device o Apple 2 o Both share dominant tablet position o Windows Microsoft not doing as well o By end of 2011 the dominant market leader RIM Blackberry virtually disappeared once Android took over as 1 Form factor physical size and shape of digital device o BYOD companies have to deal with Bring Your Own Device instead of supplying phones and laptops to employees The Internet of Things The internet of things everything is smart and programmable o ex the internet of cars once cars get sensitized to other cars street lights they don t need drivers robots being used all over place NAO robot companion for humans apps taking over expected to bring down growth of full scale applications 3D printing emerging for future