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alisha [4.7K]
3 years ago
12

What is a "telescreen"? How is it different from the televisions we know? Is it possible to make a television that could see and

hear everything in the room? Could such a device be used for discovering criminals and terrorists? Could it be used for political control? Would it be a good idea to instal?
Computers and Technology
1 answer:
mars1129 [50]3 years ago
8 0

Answer:

  1. Telescreens are devices that operate as televisions, security cameras, and microphones.
  2. A television is an electronic communication medium that allows the transmission of real-time visual images, and often sound while a telescreen is a television and security camera-like device used to keep things or people under constant surveillance, thus eliminating the chance of secret conspiracies.
  3. It could be employed in secretly investigating criminals and terrorists.
  4. It could also play a major role in politics by investigating suspicious government officials and those that plan Ill towards a nation.
  5. It would definitely be a great idea to install one of such.

Explanation:

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_________ devices often pose special challenges to investigators because they can be configured to use advanced encryption and t
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Answer:

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due to those uncertainty, some states place little wait on evidences obtained from those devices.

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What are the two common architectures used to process data
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3 years ago
Consider the following relation for published books: BOOK (Book_title, Authorname, Book_type, Listprice, Author_affil, Publisher
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The key for this relation is Book_title,Authorname. This relation is in 1NF and not in 2NF as no attributes are FFD on the key. It is also not in 3NF

<u>Explanation:</u>

<u> lGiven the relation </u>

<u>l</u>Book(Book_title, Authorname, Book_type, Listprice, Author_affil, Publisher)

land the FDs

lBook_title . Publisher, Book_type

lBook_type . Listprice

lAuthorname .Author_affil

(a) The key for this relation is Book_title,Authorname. This relation is in 1NF and not in 2NF as no attributes are FFD on the key. It is also not in 3NF

(b) 2NF decomposition:

lBook0(Book_title, Authorname)

lBook1(Book_title, Publisher, Book_type, Listprice)

lBook2(Authorname, Author_affil)

<u> This decomposition eliminates the partial dependencies. </u>

3NF decomposition:

lBook0(Book_title, Authorname)

lBook1-1(Book_title, Publisher, Book_type)

lBook1-2(Book_type, Listprice)

lBook2(Authorname, Author_affil)

l<u>This decomposition eliminates the transitive dependency of Listprice </u>

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With all of the digital data being collected today the size and number of databases are exploding. this volume of data is often
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With all the digital data being collected today, the size and number of databases are exploding. This volume of data is often called blank big data.

<h3>What is digital data?</h3>

Digital data is the form of data that is digitalized or in digital form. These data are stored in memory cards or chips in the devices. This information is in the form of encryption codes.

The data from human language is converted into computer language. The computer language is in the form of binary codes. The form is 100101010. The language is understood by the computer.

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To learn more about digital data, refer to the link:

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1 year ago
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