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masya89 [10]
1 year ago
9

What is the value of x after each of the following statements is encountered in a computer program, if x=1 before the statement

is reached? Please, justify your answer.
a) if (1+2=3) then x:=x+1
b) if ((1+1=3) OR (2+2=3)) then x:=x+1
c) if ((2+3=5) AND (3+4=7)) then x:=x+1
Computers and Technology
1 answer:
steposvetlana [31]1 year ago
5 0

Answer:

x=2

x=1

x=2

Explanation:

a)

This if statement if (1+2=3) checks if the addition of two numbers 1 and 2 is true. Here the addition of 1 and 2 is 3 which is true. So the condition becomes true.

Since the condition is true x:=x+1 statement is executed. This statement means that the value of x is incremented by 1.

The value of x was 1 before the if statement is reached. So x:=x+1 statement will add 1 to that value of x.

x:=x+1 means x=x+1 which is x=1+1 So x=2

Hence value of x is 2 (x=2) after the execution of x:=x+1

b)

In statement b the value of x will be 1 because both the mathematical operations in the if statement evaluate to false.

which means in b, x:=x+1 will not be executed and value of x remains unchanged i.e x=1

In (c) the value x will be 2 because the condition in the if statement is true. Both mathematical expressions 2+3=5 and 3+4=7 are true. Therefore x:=x+1 will be executed and value of x will be incremented by 1. Hence x=2

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Answer:

B. displaying a list of all available commands within the current mode*

D. determining which option, keyword, or argument is available for the entered command*

Explanation:

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5 0
2 years ago
The results of the spec cpu2006 bzip2 benchmark running on an amd barcelona has an instruction count of 2.389e12, an execution t
saw5 [17]

Answer:

CPI = 0.94

Explanation:

The formula for execution time is given below:

Execution time = clock cycles * cycle time

As Execution time = 750 s

clock cycle time = 0.333 ns = 0.333 * 10^-9

so putting these values in the above formula, we get

750 = clock cycles * ( 0.333 * 10^-9 )

clock cycles = 750 / ( 0.333 * 10^-9 )

clock cycles = 2.25 * 10^12

As the results of the spec cpu2006 bzip2 benchmark running on an amd barcelona has an instruction count = 2.389 * 10^12

and the formula for clock cycles is:

clock cycles = number of instructions * CPI

CPI = clock cycles / number of instructions

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CPI = 0.94

5 0
2 years ago
Mobile computing has two major characteristics that differentiate it from other forms of computing. What are these two character
olya-2409 [2.1K]

Answer:

mobility and broad reach  

Explanation:

The two major characteristics of mobile computing are:

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6 0
2 years ago
Which decimal value (base 10) is equal to the binary number 1012?
GaryK [48]

Answer:

The decimal value of 101₂² base 2 = 25 base 10

Explanation:

The number 101₂² in decimal value is found as follows;

101₂ × 101₂ = 101₂ + 0₂ + 10100₂

We note that in 101 + 10100 the resultant 2 in the hundred position will have to be converted to a zero while carrying over 1 to the thousand position to give;

101₂ + 0₂ + 10100₂ = 11001₂

Therefore;

101₂² =  11001₂

We now convert the result of the square of the base 2 number, 101², which is 11001₂ to base 10 as follows;

Therefore converting 11001₂ to base 10 gives;

11001₂= 1 × 2⁴ + 1 × 2³ + 0 × 2² + 0 × 2 ¹ + 1 × 2⁰

Which gives;

16 + 8 + 0 + 0 + 1 = 25₁₀.

7 0
1 year ago
To be a successful computer systems engineer, you must be proficient in programming languages and operating systems. Similarly,
Maslowich

Collectively, skills like the ones listed above are Technical skills. These skills refer to the Knowledge and ability to perform specific tasks. However, Soft skills are also important, because they relate to the ability to interact and communicate effectively with people.

6 0
2 years ago
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