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Si abrimos Chrome, Word, Spotify y un videojuego al mismo tiempo, ¿quién coordina el uso del procesador y la memoria?

El usuario directamente

El Sistema Operativo

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¿Qué ocurre principalmente cuando presionamos el botón de encendido de una computadora?

Se abre directamente el navegador

Se inicia una secuencia de arranque que permite cargar el Sistema Operativo

Se borran los procesos anteriores

Se inicia únicamente el antivirus

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¿Qué relación representa mejor al Sistema Operativo?

Hardware → Usuario, sin software

Aplicación → Monitor → CPU

Usuario → Hardware, sin intermediarios

Usuario/Aplicaciones → Sistema Operativo → Hardware

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If the price of gasoline was $3.25 a gallon and it is now $3.75 a gallon, what is the percentage change in price?

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Pookie's Pinball Palace restores old Pinball machines. Pookie has just spent $300 purchasing and cleaning a 1960s-era machine which he expects to sell for $2,000 once he is finished with the restoration. After having spent $300, Pookie discovers that he will need to rewire the entire machine at a cost of $1,100 in order to finish the restoration. Alternatively, he can sell the machine "as is" now for $1,000. What is his marginal benefit if he sells the machine "as is" now?

The marginal benefit cannot be determined.

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Refer to Figure 3-5. At a price of $10, the quantity sold

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Which of the following statements about competition in a market is true?

Competition forces firms to outsource the production of their labor-intensive products.

Competition forces firms to produce and sell products as long as the marginal benefit to consumers exceeds the marginal cost of production.

Competition forces firms to undercut their selling price, thus benefiting consumers who will be able to purchase products at the lowest price possible.

Competition forces firms to add only low profit margins to their costs of production.

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	Serena	Haley
Bracelets	8	9
Necklaces	16	12

Table 2-7 shows the output per week of two jewelers, Serena and Haley. They can either devote their time to making bracelets or making necklaces.

Refer to Table 2-7. What is Serena's opportunity cost of making a bracelet?

3/4 of a bracelet

1/2 of a necklace

1/2 of a bracelet

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Figure 2-4 shows various points on three different production possibilities frontiers for a nation.

Refer to Figure 2-4. Consider the following events:

a.	an increase in the unemployment rate

b.	a decrease in a nation's money supply

c.	a war that kills a significant portion of a nation's population

Which of the events listed above could cause a movement from Y to W?

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If a firm has an incentive to increase supply now and decrease supply in the future, then the firm expects that the

demand for the product will be lower in the future than it is today.

price of its product will be lower in the future than it is today.

price of inputs will be lower in the future than they are today.

price of its product will be higher in the future than it is today.

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