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melomori [17]
2 years ago
10

Assuming that it takes 2 nsec to copy a byte, how much time does it take to completely rewrite that screen of an 80‐character X

25 line text mode memory‐mapped screen? What about a 1024 X 768 pixel graphics screen with 24‐bit color?
Computers and Technology
1 answer:
Darina [25.2K]2 years ago
3 0

Answer:

a.  0.04 msec

b. 23.59 msec

Explanation:

<u>a. Text Mode</u>

2 * 80 *25 = 4000 bytes

1 byte take 2nsec time so, 4000 bytes take

4000 * 10 nsec = 40000 nsec = 0.00004 sec = 0.04 msec

<u />

<u>b. Graphics: </u>

24 bit color

3 bytes per pixel

1024 * 768 * 3 = 2 359 296 bytes

2 359 296 * 10 nsec = 23592960 nsec = 0.02359296

sec =23.59 msec

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Write a program that reads students’ names followed by their test scores. The program should output each student’s name followed
bekas [8.4K]

Answer:

See explaination

Explanation:

#include <iostream>

#include <iomanip>

#include <fstream>

#include <string>

using namespace std;

void readStudentsData();

void levels(int&,int&,int&);

int main()

{

string studentsName[50];

int grade[50];

int highestScore = 0;

int belowAverage = 50;

int countStudents = 0;

int sum = 0;

int score[5]=

double average = 0;

ifstream infile;

ofstream outfile;

void readStudentsData();

infile.open("c:\\Data.txt");

int numOfStudents = 0;

infile >> studentsName[numOfStudents] >> grade[numOfStudents];

While (infile && numOfstudents < 50)

{

numOfStudents++;

infile >> studentsName[numOfStudents] >> grade[numOfStudents};

}

if (!infile)

{

cout << "File does not open." << endl;

return 1;

}

outfile.open("c:\\average.out");

outfile << fixed << showpoint;

outfile << setprecision(2);

infile >> studentsName;

infile >> score1 >> score2 >> score3 >> score4 >> score5 >>;

outfile << left << setw(20) << "Students Name"

<< setw(5) << "Score 1" << setw(5) << "Score 2"

<< setw(5) << "Score 3" << setw(5) << "Score 4"

<< setw(5) << "Score 5" << setw(5) << "Grade"

<< setw(5) << "Average" << setw(5) << "Below average"

<< setw(5) << "Highest" << endl;

if (average >= 90)

cout << "A" << endl;

else if (average >= 80)

cout << "B" << endl;

else if (average >= 70)

cout << "C" << endl;

else if (average >= 60)

cout << "D" << endl;

else

cout << "F" << endl;

}

average = static_cast<double>(score1+score2+score3+score4+score5) /5;

void level(int &highestScore,int &belowAverage,int &sum);

{

int level,high = 0,low = 17;

infile >> level;

while(level!=-1)

{

sum = sum + level;

if (level > high)

{

high = level;

infile >> level;

}

else

if (level < low)

{

low = level;

infile >> level;

}

else

if infile >> level;

}

outfile << ' ' << high;

else

if (high > highestScore)

highestScore=high;

else

if (low < belowAverage)

belowAverage=low;

}

do

{

cout << "Students Name: ";

cin >> name

cout << "Input score: " << endl;

cin >> score1>> score2>> score3>> score4>> score5;

cout << Students Name << Highest score);

}

While (highest score !=0);

infile.close();

outfile.close();

return 0;

}

5 0
2 years ago
Given three dictionaries, associated with the variables, canadian_capitals, mexican_capitals, and us_capitals, that map province
Nookie1986 [14]

Answer:

The Python code to combine the three dictionaries are is given as follows:

  1. canadian_capital = {
  2.    cash: "SOME VALUES",
  3.    assets: "SOME VALUES"
  4. }
  5. mexican_capital = {
  6.    cash: "SOME VALUES",
  7.    assets: "SOME VALUES"
  8. }
  9. us_capital = {
  10.    cash: "SOME VALUES",
  11.    assets: "SOME VALUES"
  12. }
  13. nafta_capital = {
  14.    canadian: canadian_capital,
  15.    mexican : mexican_capital,
  16.    us: us_capital
  17. }

Explanation:

<u>Line 1 - 14 :</u>

Create three Python dictionaries and name them as <em>canadian_capitals, mexican_capital </em>and<em> us_capitals</em>. Please note a Python dictionaries should be enclosed in curly braces { }.  

We just define two samples of relevant keys (<em>cash </em>and <em>asset</em>) in each of the dictionaries. Python dictionary can map a key to a value.

Since we are not given any capital values from the question,  a dummy string "<em>SOME VALUES</em>" is tentatively set as the value for each of the keys.

In practice, we should replace those dummy strings with the real values of capital. The values can be a number, a string, a list and even a nested dictionary.

<u>Line 16 - 20 : </u>

Create one more Python dictionary and name it as <em>nafta_capital</em>.

Since our aim is to combine the three previous dictionaries (<em>canadian_capitals, mexican_capital </em>and <em>us_capitals</em>) and associate it with <em>nafta_capital</em>, we can define three different keys (<em>canadian, mexican </em>and <em>us</em>) in our dictionary nafta_capital.

As mentioned, a value associated with a key can be a nested dictionary. Hence, we just map <em>canadian_capitals, mexican_capital </em>and <em>us_capitals</em> as the value of the keys (<em>canadian, mexican </em>and<em> us</em>) in dictionary<em> nafta_capital,</em> respectively,

By doing so, we have managed to combine three target dictionaries (<em>canadian_capitals, mexican_capital </em>and <em>us_capitals</em> ) into a single dictionary, <em>nafta_capital</em>.

4 0
2 years ago
During the boot process, what does the processor do after the computer circuits receive power?
ZanzabumX [31]

Answer:

When ROM receives power, its ROM BIOS instructions are activated and they load the operating system into RAM. This startup sequence is referred to as the boot process. After the operating system is loaded, the computer can accept input, display output, run software, and access your data.

8 0
2 years ago
Write a function called add_tuples that takes three tuples, each with two values, and returns a single tuple with two values con
Leni [432]

In Python, tuples are indeed a data structure that also stores an ordered sequence of unchanging values, and following are the Python program to the given question:

Program Explanation:

  • Defining a method "add_tuples" that takes three variables "firstTuple, secondTuple, thirdTuple" into the parameter.
  • After accepting the parameter value a return keyword is used that adds a <em><u>single tuple with two values</u></em> and returns its value into the form of (x,y).
  • Outside the method, two print method is declared that calls the above method by passing value into its parameters.

Program:

def add_tuples(firstTuple, secondTuple, thirdTuple):#defining a method add_tuples that takes three variable in parameters

   return firstTuple[0]+secondTuple[0]+thirdTuple[0],firstTuple[1]+secondTuple[1]+thirdTuple[1] #using return keyword to add value

print(add_tuples((1,4), (8,3), (14,0)))#defining print method that calls add_tuples method takes value in parameters

print(add_tuples((3,2), (11,1), (-2,6)))#defining print method that calls add_tuples method takes value in parameters    

Output:

Please find the attached file.  

Learn more:

brainly.com/question/17079721

4 0
2 years ago
Workspace How do the following technologies help you in your quest to become a digital citizen: kiosks, enterprise computing, na
adelina 88 [10]

Answer:

1) A kiosk are small platforms that can be used for obtaining information and programming relate to entertainment, transportation, commerce, applications, and other areas. A kiosk is located in busy business areas. With Kiosks, one is able to get answers to important information such as service locations.

2) Enterprise computing is the use of information technologies and computing in organizational setting. Enterprise computing provides improved data security

3) Natural language processing is the artificial intelligence concept that deals with the interaction between man and computer by use of natural language. With natural language processing, it is possible to interact with artificial intelligence application in the same manner we interact with a real person

4) Robotics is concerned with the design construction, and operation of robots. It involves the collaboration of computer science and engineering fields. Robotics provide 24 hours assistance including in inhuman conditions such as low oxygen

5) Virtual Reality (VR) is the creation of easily believable simulation of real life by means of computer technology. With virtual reality, one is able to practice practical  trade skills in their living room

Explanation:

6 0
2 years ago
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