citm102 ch05

citm102 ch05 - CITM102 CH05 Think of IT as the...

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CITM102 CH05 Think of IT as the “plumbing” of business information system (IS): 1. Constant Access + Get water whenever we turn the tap 2. Reliable system need the reservoirs, processing facilities, and the pipes to deliver clean water In an IT’s perspective, this means being able to get data: a. In different forms: number, txt, video, audio b. Organized in different ways: tables, reports, graphs THE TECHNOLOGY INFRASTRUCTURE Core IT Components ( Hardware, Software and Network ) are also applied at the organizational level. Difference: More of everything (more data process, larger problems to solve) Core 1: Organizational Hardware Just as processing hardware is at the heart of any individual IT device, it is also at the heart of business IS. - Difference: rather than making decisions about a single processor, organizations typically need to select combinations of processors with varying powers - Computer Hierarchy: A common categorization scheme for processors used in IS Categorizes processors according to their power Organization has many options to meet its processing needs and will select the most efficient and cost- effective option possible COMPUTER HIERARCHY Computer Type Relative Processing Power Purpose Example Super Computer Largest and fastest - Performs processor intensive computations - Uses parallel processing Environment Canada: Analyze data and forecast the weather Mainframe Large - Carries out organizational processing needs - Uses high-speed processing chips and large amount of memory Health Canada: Process Health care benefit claims not covered under federal/provincial health care plans Server Farms Medium/Many - Allows multiple servers to handle network processing activities Google Personal Computers (PC) Small to Medium - Allows users to carry out processing tasks Internet Banking: Ex: Manage accounts Personal Digital Assistance Very Small - Provides users with portable computing power - Often used to communicate Manage information/schedule on the go
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CITM102 CH05 (PDA) with PC or other users Embedded Processors Extremely Small Proctor and Gamble: Monitor expiration date of packages Core 2: Organizational Networks – Data Communications in Organizations Tech guide C: Core functions of Data Transfer in Organization are supported by networks of connected computers Also, Networks: * Are the main technology supporting communication between: 1. Employee and Employee 2. Organization and Suppliers and Customers * Provide a platform for collaboration, allowing users to share data, information and knowledge Organizations use all sizes of networks: PANs, MANs, WANs, Internets, and networks based on the internet protocols Network Size Range Purpose Example PAN (private) (Small space) From human body to small office - Communication among computer devices in close proximity - Connection between MP3 player and wireless headset - “Sync” PDA with PC LAN (private) Within the immediate location or building -
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This note was uploaded on 03/27/2012 for the course ITM 102 taught by Professor Unknown during the Fall '09 term at Ryerson.

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citm102 ch05 - CITM102 CH05 Think of IT as the...

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