COMMERCE 2KA3 Lecture Notes - Lecture 5: Autonomic Computing, Crowdsourcing, Novell
19 Jun 2015
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Chapter : it: how it evolved, started off with a centralized mainframe. Large, expensive mainframes: development into personal computer. Most companies use winintels (windows with intel cpus) These computers weren"t connected to each other: later on, developed into servers to connect computers. Idea here is that you can leverage the processing power of other computers can have thin or fat clients started within a single orgs: due to lack of universal standards, using your own properity linkage. Then you would get more complex architecture multiple levels/tiers architecture: e. x. at home log into mcmaster"s vpn mac"s web server connects to mosaic (erp system used) accesses system to get file. Idea of having multiple layers since its cheaper to have multiple cheaper machines than fewer expensive ones. Then you start developing enterprise systems: different servers with different functions connected to enterprise server connected to internet. 1992 at that point: most recently move towards cloud and mobile computing.
