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spin [16.1K]
3 years ago
6

HEPPPP 98 POINTSSS How has computers changed over the years? How can they be used now?

Computers and Technology
1 answer:
Ilia_Sergeevich [38]3 years ago
5 0

computers have become much much more powerful from the early days of 1960s. back then they filled up entire room or while floor n their computing power added up to less than whats on ur smart watch today.


the increase in computing power is tied to the advance in micro-electronics. the micro-electronics are called integrated circuits (ICs). the IC computing power has been doubled ever year leading to some very powerful computers today.


with the increase in their computing powers, computers have grown to be used on many different things. at first, it was only for military and secret govt projects. now computers are used to keep track of stock prices, manage production lines, monitor people health, calculate taxes and many many other applications.


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Ilya [14]

Answer:

Option is b is correct answer. Excel performs exponentiation, then multiplication and division, then addition, and subtraction, it is correct order of operation in Excel. It is important to remember when you write any formula in Excel having different mathematical operators like +/ -/ ^/  etc, it follows a specific order and performs calculations in specific order which is termed as order of operator precedence. Each of mathematical operator has its precedence and executes in a special order set by Excel.

Explanation:

  • As we already know order of precedence of each mathematical operator is different in Excel. The order of operations for Excel is as follows:

  • Evaluate elements in parentheses.
  • Evaluate 'ranges' ().  
  • Evaluate 'intersections' (empty spaces).  
  • Evaluate 'unions' (,).
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  • determine percentages (%).  
  • Perform exponentiation (^).  
  • Perform multiplication (*) and division (/), both are of equal precedence.  
  • Perform addition (+) and subtraction (-), both are of equal precedence.  
  • Evaluate text operators like (&).  
  • Perform comparisons like (=, <>, <=, >=).

 

Answer details  

Grade: Middle

Subject: Computers and Technology

Chapter: Order of precedence of mathematical operators

Keywords: precedence in Excel, operators precedence etc

7 0
4 years ago
Suppose that in a 00-11 knapsack problem, the order of the items when sorted by increasing weight is the same as their order whe
frosja888 [35]

Answer:

Following are the response to the given question:

Explanation:

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Assume that such a strategy also isn't optimum, this is that there is the set of items not including one of the selfish strategy items (say, i-th item), but instead a heavy, less valuable item j, with j > i and is optimal.

As W_i < w_j, the i-th item may be substituted by the j-th item, as well as the overall load is still sustainable. Moreover, because v_i>v_j and this strategy is better, our total profit has dropped. Contradiction.

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Quick!!! Brainliest
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Which of the following is the single best rule to enforce when designing complex passwords?
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Answer:

B. Longer passwords

Explanation:

If the password is longer, it requires more incorrect attempts to find it, so the system could identify a potential hacker attempt. Smaller but more complex passwords could be identified by mistype or forgotten passwords.

3 0
3 years ago
A ____ firewall keeps a record of the state of a connection between an internal computer and an external device and then makes d
Yakvenalex [24]

Answer:

Stateful frame filtering

Explanation:

<h2><u>Fill in the blanks</u></h2>

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