COMPUTERS AND TECHNOLOGY HIGH SCHOOL

In 1876, Alexander Graham Bell began a new era of communication with his invention of the

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Answer 1
Answer: As for this problem, what is asked might be most probably and most likely to be referring it to the telephone.

Alexander Graham Bell began a new era of communication with his invention of the telephone in 1876. This paved the way to a better communication, from exchanges of his and hellos, to exchanging files and documents. This was made possible through innovation and Alexander Graham Bell has become a turning point for communication to level up the standards of communication.

Related Questions

The advent of email in the business world surely has created new ground for moral dilemmas involving information access and privacy.Tony, a data analyst for a major casino, is working after normal business hours to finish an important project. He realizes that he is missing data that had been sent to his coworker Robert.Tony had inadvertently observed Robert typing his password several days ago and decides to log into Robert’s computer and resend the data to himself. Upon doing so, Tony sees an open email regarding gambling bets Robert placed over the last several days with a local sports book. All employees of the casino are forbidden to engage in gambling activities to avoid any hint of conflict of interest. Tony knows he should report this but would have to admit to violating the company’s information technology regulations by logging into Robert’s computer. If he warns Robert to stop his betting, he would also have to reveal the source of his information. What does Tony do in this situation?
Which of the following would be useful to understand if you wanted to build a web page? HTML HTTP HREF WYSIWYG
Google is an example of a(n): Web site.search engine.search directory. subject directory
carter is the web designer for an open source project. he has created a program that facilitates the easy collation of data for a large-scale logistics firm. which of the following is true of the source code for carter's program? question 13 options: a) it is highly protected and obtained only by having a license. b) it is available only to carefully vetted contractors. c) it is less stable and platform dependent. d) it is available to the public.
An automated search feature used by search engines to find results that matched your search terms is called a spider or (blank)?

At Mattel, Barbie is child-tested to be sure the doll cannot be broken apart and accidentally choke a child. This type of

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During the Development stage for a new product, there are several test procedures performed for the safety of the consumers and for the quality of the product. Just like in Mattel, Barbie dolls are tested by a child to make sure the toy won't break apart and to approved its safety.

Which part of the computing process occurs before storage is used?

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Before storage is used in the computing process, data must be processed and manipulated in the CPU (Central Processing Unit). This includes tasks like input processing, calculations, and various operations performed on the data. Once the data has been processed, it can then be stored in storage devices like RAM (Random Access Memory) or long-term storage such as hard drives or SSDs (Solid State Drives).

Answer:

input

Explanation:

A(n) ____ is an attack that takes advantage of a system vulnerability.

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Exploit - An attack that takes advantage of a system vulnerability, often due to a combination of one or more improperly configured services.

6. when a program is finished using a file, it should do this. a. erase the file b. close the file c. throw an exception d. reset the read position 17. this class allows you to use the print and println methods to write data to a file. a. file b. filereader c. outputfile d. printwriter 18. this class allows you to read a line from a file. a. filewriter b. scanner c. inputfile d. filereader 19. true or false: the while loop is a pretest loop. 20. true or false: the do-while loop is a pretest loop. 21. true or false: the for loop is a posttest loop. 22. true or false: it is not necessary to initialize accumulator variables. 23. true or false: one limitation of the for loop is that only one variable may be initialized in the initialization expression. 24. true or false: a variable may be defined in the initialization expression of the for loop. 25. true or false: in a nested loop, the inner loop goes through all of its iterations for every iteration of the outer loop. 26. true or false: to calculate the total number of iterations of a nested loop, add the number of iterations of all the loops.

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Answer:

16. close the file

17. Output file

18. scanner

19. true

20. false

21. false

22. false

23. false

24. true

25. true

26. false

Explanation:

Hope it helps!

3. Let A = {1, 5, 7, 11}. Show that (A, *) is a group, where * is a binary operator defined as x * y = (x ⋅ y) mod 24. Determine the identity and the inverse of each element. 4. Consider the group A in Exercise 3, a. Prove or disprove that A has a subgroup of order 2. b. Prove or disprove that A has a subgroup of order 3.

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Answer:

To show that (A, *) is a group, we need to verify four conditions: closure, associativity, identity, and inverses.

1. Closure: For any x, y in A, x * y = (x ⋅ y) mod 24. Since the product of any two elements in A is also in A, closure is satisfied.

2. Associativity: The binary operator * is associative if (x * y) * z = x * (y * z) for all x, y, z in A. Since multiplication and modulo operations are associative, the binary operator * is also associative.

3. Identity: An identity element e in A should satisfy x * e = e * x = x for all x in A. Let's check each element in A:

1 * 1 = (1 ⋅ 1) mod 24 = 1 mod 24 = 1 (not the identity)

5 * 5 = (5 ⋅ 5) mod 24 = 25 mod 24 = 1 (not the identity)

7 * 7 = (7 ⋅ 7) mod 24 = 49 mod 24 = 1 (not the identity)

11 * 11 = (11 ⋅ 11) mod 24 = 121 mod 24 = 1 (not the identity)

None of the elements in A satisfy the condition for an identity element, so (A, *) does not have an identity element.

4. Inverses: For each element x in A, there should exist an element y in A such that x * y = y * x = e, where e is the identity element. Since (A, *) does not have an identity element, it also does not have inverses.

Therefore, (A, *) does not form a group.

For exercise 4:

a. To prove that A has a subgroup of order 2, we need to find two elements in A whose binary operation results in the identity element (which we determined does not exist). Therefore, A does not have a subgroup of order 2.

b. To prove that A has a subgroup of order 3, we need to find three elements in A whose binary operation results in the identity element (which we determined does not exist). Therefore, A does not have a subgroup of order 3.

Rina has misspelled a word many times in her document. Which is the fastest way she can correct the mistake?A. Use the replace all button to replace the misspelled word with the correct spelling.

B. Use the thesaurus to replace the misspelled word with the correct spelling.

C. Use the spell checker to correct all misspelled words.

D. Use "Find" to find each place she misspelled a word.

Answers

A) Use the replace all button
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