IST 195 1st Edition Lecture 4Outline of Last Lecture I. The Mark OneII. 305 RMACIII. ModemsIV. Todaya. Moore’s LawV. TerminologyOutline of Current Lecture II. What is the Cloud?III. Why the Cloud?IV. Types of Cloud ComputingCurrent LectureWhat is the Cloud? - Amazon is the biggest cloud computing business - any applications you do not need to install is cloud computing (Twitter, email, Dropbox, etc.) - cloud computing is growing bigger everyday o services like Netflix and Google Drive are clouds that store data for millions of people Why the Cloud? - the traditional model of hosting use to be expensive and use a lot of hardware (dedicated server) - instead of paying for an extra server you only need a few times is a waste, the cloud makes this obsolete - as time goes on the cloud storage amount available is has stayed the same but the price has gone down drastically - Moore's Law Types of Cloud Computing - there are three layers to cloud computing 1. applications (SaaS) 2. platform (PaaS) 3. infrastructure (IaaS) 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.(http://luizfirmino.blogspot.com/2011_08_01_archive.html) (The blue is the responsibility of the customer, the gray is the responsibility of the servicer) - Infrastructure - allows you to put data away without buying new hardware when your traffic and data grows o your website lives in a cloud server and you can scale up and down when you need it o the bottom layer of cloud computing where cloud hosting lives o scalability, instant and saves time and