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Sedaia [141]
2 years ago
12

What is bug in computer?​

Computers and Technology
1 answer:
Anton [14]2 years ago
6 0

Answer:

<h2>A bug in a computer is refered to as a "computer virus" its where certain things on the computer or apps on it aren't working like they were designed to. </h2>

Explanation:

<h2>Hope this helps:)!</h2>
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Help with some questions. Thank you!
Oksana_A [137]

Answer:

1. E: II and III only

2. A: (int)(Math.random() * (upper − lower) ) + lower

3. A: The value of answer is N

4. E: while( !(userGuess == secretNumber) && numGuesses <= 15 )

5. C: 21

Explanation:

1. Which of the following is equivalent to while(userGuess != secretNumber)?

I. while( userGuess < secretNumber && userGuess > secretNumber)  

NO - This will test until the userGuess is smaller AND greater than the secretNumber, at the same time... so that condition will never be true.

II. while( userGuess < secretNumber || userGuess > secretNumber)

YES - This will test the value of userGuess and see if it's smaller OR greater than secetNumber.  So, it will loop until the user guesses right.

III. while( !(userGuess == secretNumber) )

YES, this will negate the match with the secretNumber.  In order words, if it's not a match, it will return true... so the loop will run until it finds a false condition (a match).

As you can see, only II and III are valid.

2.  If the lower limit were inclusive and the upper limit exclusive, which expression would properly generate values for the secret number?

A: (int)(Math.random() * (upper − lower) ) + lower

Since the lower limit is INCLUSIVE, we mustn't add one to the lower limit.  Also, the Math.random() function returns a value that matches our needs; it returns a value between [0,1[ (meaning the 0 is included, but not the 1).

Assuming the (int) caster does return only the integer portion doing a round down of the result, we'll be perfect.

3. What conclusion can be made about the state of the program when the while loop terminates?

while(!answer.equals( "N"))

{.....

A: The value of answer is N

The condition in the loops reads as "While the negation of the answer being 'N', loop".  If the answer equals 'N' then the method should return true... which will be negated by the '!' operator, causing the condition to be false. Thus we know that if the loop ends, the value of answer contains 'N', any other value will keep the loop going.

4. Assuming numGuesses is initialized to 1, how would the while statement be modified to include an extra criterion limiting the number of guesses to 15?

E: while( !(userGuess == secretNumber) && numGuesses <= 15 )

This modified condition will first test to see if the user has guessed the secretNumber (if he has, the first sub-parenthesis will be true... so the left side of the && operator will be false due to the negation operator.  The right side of the && operator will check to see how many tries have been attempted. Since the counter starts at 1, it needs to go up to 15 inclusively... so the <= is the right comparison operator.

5. After execution of the following code segment, what will be displayed?

int x = 1;

while(x < 18)

{

x += 5;

}

System.out.println(x);

C: 21

The x variable is initialized with 1... then enters the loop, in which it is incremented by 5 at each passage.

So after first passage, x = 6

After second passage, x = 11

After third passage, x = 16

After fourth passage, x = 21

Cannot enter the loop again because 21 > 18.

So, it will print out the value of 21.

3 0
3 years ago
What is the purpose of using variables in programming?
Sedbober [7]
Variables are used to store information to be referenced and manipulated in a computer program. ... It is helpful to think of variables as containers that hold information. Their sole purpose is to label and store data in memory. This data can then be used throughout your program.
6 0
3 years ago
How is a digital representation of analog data a form of abstraction? Why is the quality of the photo, music, etc better when mo
Alex

Answer:

1. This is because non-essential parts of the analog data is cut of so as to represent the analog data digitally.

2. This is because it mirrors closely to the original analog material.

3. i. Temperature ii. Speed ii. Distance iv. Electric current

Explanation:

1. How is a digital representation of analog data a form of abstraction?

Digital representation of analog data is a form of abstraction because, since abstraction, which is the removal of non-essential parts of a material so as to reduce complexity, also non-essential parts of the analog data is cut of so as to represent the analog data digitally.

2.Why is the quality of the photo, music, etc better when more samples are taken?

The quality of these items is better because, as more samples are taken, it reduces the error in the sampling and the item(photo, music etc) mirrors closely to the original analog material.

3. What other examples of analog data can you think of?

i. Temperature ii. Speed ii. Distance iv. Electric current

7 0
3 years ago
Discuss in detail why you need to use a write blocker (either hardware or software) in your examinations, whether for a criminal
dolphi86 [110]

A write blocker is any tool that permits read-only access to data storage devices without compromising the integrity of the data. A write blocker, when used properly, can guarantee the protection of the data chain of custody. NIST‘s general write blocking requirements hold that:

<span>The tool shall not allow a protected drive to be changed.The tool shall not prevent obtaining any information from or about any drive.<span>The tool shall not prevent any operations to a drive that is not protected.</span></span>
8 0
3 years ago
Given a sorted list of integers, output the middle integer. assume the number of integers is always odd.
Svetllana [295]

integer userInput

integer i

integer mid

integer array(20) number

userInput = 1

for i = 0; userInput >= 0; i = i + 1

  if number[i] > -1

     userInput = Get next input

     number[i] = userInput

i = i - 1

mid = i / 2

if i > 9

  Put "Too many inputs" to output

elseif i % 2 == 0

  Put number[mid - 1] to output

else

  Put number[mid] to output

4 0
2 years ago
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