MIS Test 1 Study Guide Chapter 1 Business must drive technology know the 4 steps 1 Assess state of competition and industry pressures affecting your organization 2 Determine business strategies to address competitive and industry pressures 3 Identify business processes to support your chosen business strategies 4 Align technology tools with those business processes 5 force model 3 generic strategies Value chain model MIS introduction 3 key resources in MIS 1 Information 2 People 3 Technology Information Resource Organizational Perspective know the different information flows horizontal up down in out and the IS Upward describes state of the organization based on transactions Downward strategies goals and directives that originate at a higher level and are passed to lower levels Horizontal between functional business units and work teams Outward inward from and to customers suppliers distributors and other partners Porter s 5 force model know the 5 forces The Five Forces Model helps business people understand the relative attractiveness of an industry and the industry s competitive pressures in terms of 1 Buyer power 2 Supplier power 3 Threat of substitute products or services 4 Threat of new entrants 5 Rivalry among existing competitors Threat of new entrants entry barrier example Threat of new entrants high when it is easy for competitors to enter the market and low when entry barriers are significant Entry barrier product or service feature that customers have come to expect and that must be offered by an entering organization EX Banking ATMs online bill pay etc Porter s 3 generic strategies 3 generic business strategies for beating the competition 1 Overall cost leadership 2 Differentiation 3 Focus Value Chain Analysis Value chain analysis systematic approach to assess and improve the value of business processes value chain chain or series of business processes each of which adds value Primary processes in Porter s value chain Primary value process takes in raw materials and makes delivers markets and sells and services your products and services Inbound Logistics Operations Outbound logistics Marketing and Sales Service not on study guide added in class Supplier Buyer Power Know at what points in chart supplier buyer power is low or high and who your organization is dealing with supplier or customer Buyer power high when buyers have many choices and low when their choices are few Supplier power high when buyers have few choices and low when choices are many Chapter 2 mostly straight definitions What s SCM Supply chain management SCM tracks inventory and information among business processes and across companies KEY WORD ACROSS COMPANY Supply chain management SCM system IT system that supports supply chain management Dell s effective SCM through JIT IT support for CRM Front office systems primary interface to customers and sales channels Back office systems fulfill and support customer orders ERP system definition Enterprise resource planning system collection of integrated software for business management accounting finance supply chain management inventory management customer relationship management e collaboration etc Binary digit bit smallest unit of information your computer can process 0 or 1 Byte 8 bits or the number of bits it takes to represent one natural character 8 digits ASCII American Standard Code for Information Interchange coding system that personal computers use Example Appendix A bit and byte ASCII length 8 2 primary CPU components and main function of each Control unit ALU Control unit directs what happens in the CPU and the rest of your computer Arithmetic logic unit ALU performs arithmetic comparison and logic operations System bus vs Expansion bus what are they between System bus electrical pathways that move information between motherboard components especially between CPU and RAM Expansion bus pathways along which information moves between devices outside the motherboard and the CPU Expansion Cards Slots and Bus will give this figure on test Must be able to label parts Expansion card board circuit board that you insert into the expansion slot and connect to a peripheral device Expansion slot long skinny socket on the motherboard for expansion card Capacity of Storage Drive True and False questions 1 Byte 8 bits Kilobyte KB 1KB 1024 Bytes Megabyte MB or M or Meg about 1 million bytes 1MB 1024 KB Gigabyte GB or Gig about 1 billion bytes 1GB 1024MB Terabyte TB about 1 trillion bytes 1TB 1024GB Storage Overview speed and purpose ignore cost part ports and connectors will not be on test even though it s on study guide Appendix B Differentiate hub switch and router He will describe different devises and you have to say which one it is Hub a device that connects computers into a network and repeats all transmissions to every connected computer broadcasting therefore cannot recognize computers only one computer can transmit at a time all computers see every message can have collisions when two computers try to transmit at the same time used to communicate WITHIN a network Switch a device that connects computers and repeats transmissions only to intended recipient Can recognize computers by their MAC address Multiple conversations can occur simultaneously between different sets of computers Only the destination computer can see receive the message Computers can still broadcast messages to all other computers on the network still got the hub function Used to communicate WITHIN a network Router a device that connects subnetworks subnets of a larger network Can recognize computers by their IP address Can connect different buildings at same or different locations Passes transmissions from one network to another May pass through multiple routers on the way from source to destination Used to communicate ACROSS networks Know this chart especially operation scope and recognize the receiver TCP IP definition The Transmission Control Protocol TCP and the Internet Protocol IP The communication protocol specifies how data is formatted transmitted and routed to the destination TCP IP DHCP definition DHCP automatically connects you to the internet Before we would have to manually connect to internet through dial up connection Now devises connect automatically to router through Wi Fi or Ethernet cord and you no longer have to set it up yourself Internet Speed Calculation File size 2MB Bandwidth 1Mbps How many seconds to download the file 1Mbps 1 Mega bits per second 1 byte