Lecture 2: OS Structure CSC 469H1F Fall 2006 Angela Demke Brown Week 1 Overview • Motivation: Why talk about structure? • Kernel structures • • • • • Monolithic kernels Open systems Microkernels Kernel Extensions (Tuesday) Virtual Machines (Tuesday) CSC469 Week 1 Motivation • Let’s review what OS provides… • • • • Abstraction layers Protection boundaries Resource allocators Resource schedulers • It’s complicated! • Windows NT ~29 million lines of code (as of 2000) CSC469
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Bob’s Supermarket faced a lot of economic challenges. One of those economic challenges was when the United States was hit with a recession. As a result‚ the recession left many businesses like Bob’s Supermarket with a decline in sales‚ because many consumers had started to retrench from spending. In fact‚ the tight economy left many consumers to look for cheaper options when it came to spending (Parnell‚ 2014). For instance‚ places like Wal-Mart and Aldi manage to profit from those consumers because
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St Atanagio is a remote island in the Atlantic. The inhabitants grow corn and breed poultry. The accompanying table shows the maximum annual output combinations of corn and poultry that can be produced. Obviously‚ given their limited resources and available technology‚ as they use more of their resources for corn production‚ there are fewer resources available for breeding poultry. Maximum annual output options Quantity of Corn (pounds) Quantity of Poultry (pounds) 1 1200 0 2 1000 300
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1. PRINCIPES OF ECONOMICS-MANKIEW CHAPTER 1- QUESTION FOR REVIEW (18) No 3. What is inflation and what causes it? = Inflation is an increase in the overall level of prices in the economy. Inflation happen because culprit is growth in the quantity o money when a government creates larges quantities of the nation’s money‚ the value of the money. No 5. Explain the two main causes of market failure and give an example of each! = Externality‚ is the impact of one person’s action on the well being
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Experiment 6: Microbial Cultivation Objectives: To successfully cultivate microorganisms from different sources to medium. Materials: Broth‚ Agar‚ Sterilized cotton swab‚ Procedure: 1) Get your broth with cotton swab inside containing your bacteria. 2) Remove the cotton and flame sterilize the mouth of the testtube. 3) Get your cotton swab inside‚ flame sterilize again the mouth of the testtube then plug it with cotton. 4) Grab the inverted plated media and flame sterilize the
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Econ 2200 Midterm #1 fall 2011 Section I Answer Four of the following six questions. Each question is worth 5 points. a. What is the difference between the Income Effect and a Change in Income? b. True or False: The slope of the budget line represents the rate at which the consumer is willing to trade one good for another at any given bundle. Explain. c. An Engel curve can be both positively and negatively sloped‚ why does this happen? d. What do we mean by the term “Consumer Surplus”? e
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Opportunity cost of an activity (or goods) is equal to the best next alternative foregone. Although opportunity cost can be hard to quantify‚ the effect of opportunity cost is universal and very real on the individual level. In fact‚ this principle applies to all decisions‚ not just economic ones. Since the work of the Austrian economist Friedrich von Wieser‚ opportunity cost has been seen as the foundation of the marginal theory of value[citation needed]. Opportunity cost is one way to measure
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QUESTION 1 a. A downward-sloping demand curve shows in both graphs when the quantity at each price is doubled what it was. However‚ the curve in demand for pharmaceutical drugs is drawn with a relatively steep slope as inelastic products. Equilibrium price down-sloping along the demand curve while quantity in both market increased to some extent. b. In inelastic demand of pharmaceutical drugs‚ the percentage change in price is greater than the percentage change in quantity demanded. While in elastic
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COMPANY NAME/WEBSITE/INDUSTRY Company: FreshDirect Website: http://www.freshdirect.com Industry: Online Grocery BACKGROUND/HISTORY FreshDirect was founded in 1999 but fully operational in 2001. The company is a New York based and in the online grocery business. All of their customers shop online for their groceries that are delivered to their homes or place of business the next day. FreshDirect offers fresh produce‚ meat and seafood‚ shelf stable items and even prepared meals (www.freshdirect
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The possibility that microorganisms exist was discussed for many centuries before their actual discovery in the 17th century. The existence of unseen microbiological life was postulated by Jainism‚ which is based on Mahavira’s teachings as early as 6th century BCE.[19] Paul Dundas notes that Mahavira asserted existence of unseen microbiological creatures living in earth‚ water‚ air and fire.[20] Jain scriptures also describe nigodas‚ which are sub-microscopic creatures living in large clusters and
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