Which of the following is most closely associated with Moore's Law?
a. Every year or two, the price of computers has approximately doubled.
b. Object-oriented programming uses less memory than previous software-development methodologies.
c. Demand for communications bandwidth is decreasing dramatically each year.
d. Every year or two, the capacities of computers have approximately doubled without any increase in price.
d. Every year or two, the capacities of computers have approximately doubled without any increase in price.
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Recursively visiting the root node, left subtree and then the right subtree describes:
(a) preorder processing (b) inorder processing (c) postorder processing (d) none of the above
Rewrite the following conditional expressions without any NOT operators so that the logical outcome is unchanged for all values of the variable x. Then evaluate the original expression and the equivalent expression using the values: x = 1, y = 1, z = 1. Compare the results.
Notes: The NOT operator applies to the part of the expression enclosed in parentheses that follows immediately. Evaluating the original and equivalent expressions for the values given is only a partial check. A general check can be done with a truth table. (x > = 3) OR NOT (x = 1) (x>=3)0R(x<>1)
Which of the following is not true about Facebook games such as FarmVille?
A) Games like FarmVille have free components and allow users to buy unique items and upgrades using Facebook Credits to enhance their game experience. B) When an app gains a large following, the developers may choose to make the app available outside of Facebook. C) Users should not be wary of giving their credit card information to purchase Facebook credits since all companies Facebook deals with are considered to be trusted sources. D) As FarmVille is a relatively big name in apps, it can get users to pay via credit card.
A technician is installing a program on a Windows 7 computer and the installation fails. Which of the following is the next step?
A. Run the installer as an administrator B. Contact the program's manufacturer C. Reinstall Windows XP on the computer D. Upgrade to Windows 7