IUB BUS-K 201 - LecturePracticalReview (17 pages)

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LecturePracticalReview



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LecturePracticalReview

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Pages:
17
School:
Indiana University, Bloomington
Course:
Bus-K 201 - The Computer in Business
Unformatted text preview:

K201 Review Lecture Practical Exam 1 Sign up for a chapter and do the questions below Reading List Chapter 1 Q2 6 Tenbarge Chapter 3 Q1 5 Bower Chapter 4 Q1 2 4 Knoff Chapter 5 Q1 10K Ray Chapter 6 Q1 6 Dunbar Chapter 7 Q3 6 Rapp Chapter 9 Q1 3 SCurts Chapter 10 Q1 2 4 7 BRUNS Piss bottles in Moheban s bed Chair Chapter 12 Q1 6 DK Who deleted the reading chapter assignments I put that up there for a reason Chapter 1 1 System a group of components that interact to achieve some purpose Information system a system that works to produce information Management information system the management and use of IS that help businesses achieve their strategies 2 The five component model of an IS consists of hardware software data procedures and people all of which are present in every IS It models the system as increasing degrees of difficult for change and less automation down the line of the components E g writing a paper on a computer hardware computer software programs data words sentences procedures typing saving printing people you 3 Businesses develop IS to help achieve their strategies They are not created because an IS department thinks it needs to be because the company is falling behind 4 People are the most important components of IS because they design plan and execute them The information system can only provide information not what to do with that information The IS is only as useful as people make it 5 Hardware is the easiest to change people are the most difficult and causes the highest degree of disruption for the corporations functionality 6 Information Technology IT refers to the products methods inventions and standards for information production IT is the hardware software and data components of IS 7 Information is the knowledge derived from data It is also presented as the data presented in a meaningful context processed data or data processed by summing ordering averaging grouping comparing or other process If it s on a screen piece of paper its data If it s in the mind of a human its information 8 Good information must be accurate timely relevant to context subject just sufficient to the purpose which it is needed and worth its cost Chapter 3 1 Describe the process by which organizations develop their information systems Organizations examine the structure of their industry and determine a competitive strategy That strategy determines value chains which in turn determine a competitive strategy The structure of business processes determines the design of supporting information systems 2 Porter s 5 Forces Model a Customer Power ability of customer to put firm under pressure and bargain b Threat of substitutes customer switch to a substitution i e water instead of coke c Supplier Power bargaining power may charge high rates for materials d Rivalry among competitors competition via innovation and advertising all firms want best product and most profit e Threat of new competitors Profitable markets that yield high returns will attract new firms 3 Porter s 4 Competitive Strategies Firms can choose from a Cost Leadership a firm sets out to become the low cost producer in its industry b Differentiation firm selects one or more attributes that many buyers in an industry perceive as important and uniquely positions itself to meet those needs it is rewarded by its uniqueness at a premium price c Focus The focuser selects a segment or group of segments in the industry and tailors its strategy to serving them to the exclusion of others d Competitive Advantage a competitive advantage sustainable or not exists when a company makes economic rents that is their earnings exceed their costs including cost of capital 4 Value the amount of money that a customer is willing to spend on a resource product or service Margin the difference between the value that an activity generates and the cost of the activity Value Chain is a network of value creating activities 5 Primary Activities in a generic value chain Inbound logistics receiving storing and disseminating inputs to the product Operations Manufacturing transforming inputs into the final product Outbound logistics collecting storing and physically distributing the products to buyers Sales and Marketing inducing buyers to purchase the product and providing a means for them to do so Customer Service assisting customer s use of the product and thus maintaining and enhancing the product s value Chapter 4 1 Describe the various components of hardware Input Hardware Typical devices are keyboard mouse document scanners etc Central Processing Unit CPU Called The Brain of the computer CPU holds instructions and processes them Also performs arithmetic and logical comparisons CPU s vary in speed function and cost RAM For main or random access memory Output Hardware Consists of video replays printers speakers projectors and special purpose devices Storage Hardware Saves data and programs Magnetic disks are the most common storage device CDs and DVDs are also popular 2 Describe how data is represented in computers Binary digits AKA Bits Used for computer data because they are easy to represent electronically and the switch can be either closed or open and can be numbers characters currency amounts photos or recordings Bytes 8 bit chunks of bits that are used to measure sizes of non character data as well 3 Describe the functioning of a computer 1 Computer first transfers data from disk to main memory 2 Then moves instruction from main memory into CPU via data channel 3 Main memory of computer contains program instructions for Excel Acrobat and Explorer 4 Contains a block of data and instructions for Operating System that control s computers resources 5 CPU loads programs into memory in chunks 6 If user needs to open system operating system will attempt to place new data into vacated space Called Memory Swapping 4 Difference between volatile and nonvolatile memory Why is it important in a business Volatile Cache and memory are lost when power is off Non Volatile Magnetic and Optical disks mean that their contents survive when power is off Save files often in order to prevent any data loss if cord is tripped 5 Explain client and server computers Users employ client computers for word processing spreadsheets and data access Most clients have software that enables them to connect to a network Server Computers process email and other websites and often process large shared databases also Server computers must be fast and they also usually have multiple


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