Hi, Everybody i have a question it is almost my B-day i want this lego set

How to add a second screen to your computer?

kkurt [141]

All you have to do is have an available video port on your computer that's compatible with your second monitor (or get an appropriate adapter). Once it's powered on, Windows should automatically detect the second screen, BUT it won't do anything until you tell it to - which means you may not see the second screen show anything from Windows and that's normal.

To access the 2nd screen once windows finds it, then you have to hit the Start and the letter, "P" at the same time and it will show you your options. I usually use the expand option. Some people like the duplicate option to show off. Or you can make your other monitor your primary and turn the original one off. All your call!

3 0

4 years ago

Which of the following optical storage media has the greatest storage capacity?

inessss [21]

You need to list the options.

7 0

3 years ago

OBJECTIVE This project will familiarize you with the use of pthreads, pthread mutexes and pthread condition variables. Your prog

zysi [14]

Answer:

Check the explanation

Explanation:

/*

This program will simulate a tunnel with a limit of how many cars may move through it,

and will also simulate the cars going north and south-bound through the tunnel. We will

use pthreads, pthread mutexes, and pthread condition variables to simulate this.

*/

#include <iostream>

#include <fstream>

#include <sstream>

#include <string>

#include <unistd.h>

#include <stdio.h>

#include <stdlib.h>

#include <unistd.h>

#include <pthread.h>

#include <string.h>

#include <signal.h>

#include <sys/types.h>

using namespace std;

#define MAXTHREADS 128

static int maxCarsInTunnel;

static int maxNCarsInTunnel;

static int maxSCarsInTunnel;

static int totalNCars;

static int totalSCars;

static int currentCarsInTunnel;

static int currentNCarsInTunnel;

static int currentSCarsInTunnel;

static int numCarsWaiting;

static pthread_mutex_t lockAccess = PTHREAD_MUTEX_INITIALIZER;

static pthread_cond_t cond = PTHREAD_COND_INITIALIZER;

void *northCar(void *arg);

void *southCar(void *arg);

struct car {

int carNo;

int travelTime;

bool waited;

};

int main() {

pthread_t cartid[MAXTHREADS];

int storage = 0;

cin >> maxCarsInTunnel;

cin >> maxNCarsInTunnel;

cin >> maxSCarsInTunnel;

cout << "Maximum number of cars in the tunnel: " << maxCarsInTunnel << endl;

cout << "Maximum number of northbound cars: " << maxNCarsInTunnel << endl;

cout << "Maximum number of southbound cars: " << maxSCarsInTunnel << endl;

unsigned int arrival_time;

char direction;

unsigned int traversal_time;

struct car argList;

while (cin >> arrival_time >> direction >> traversal_time) {

sleep(arrival_time);

argList.travelTime = traversal_time;

argList.waited = false;

if (direction == 'N') {

totalNCars++;

argList.carNo = totalNCars;

pthread_create(&cartid[storage], NULL, northCar, (void *) &argList);

}

else if (direction == 'S') {

totalSCars++;

argList.carNo = totalSCars;

pthread_create(&cartid[storage], NULL, southCar, (void *) &argList);

}

storage++;

}

for (int i = 0; i < storage; i++) {

pthread_join(cartid[i], NULL);

}

cout << totalNCars << " northbound car(s) crossed the tunnel." << endl;

cout << totalSCars << " southbound car(s) crossed the tunnel." << endl;

cout << numCarsWaiting << " car(s) had to wait." << endl;

return 0;

}

void *northCar(void* arg) {

int tunnelTime;

int carNum;

bool wait;

struct car *argptr;

argptr = (struct car *) arg;

tunnelTime = argptr->travelTime;

carNum = argptr->carNo;

wait = argptr->waited;

pthread_mutex_lock(&lockAccess);

cout << "Northbound car # " << carNum << " arrives at the tunnel." << endl;

while (currentNCarsInTunnel >= maxNCarsInTunnel || currentCarsInTunnel >= maxCarsInTunnel) {

if (wait == false) {

wait = true;

numCarsWaiting++;

}

pthread_cond_wait(&cond, &lockAccess);

}

currentNCarsInTunnel++;

currentCarsInTunnel++;

cout << "Northbound car # " << carNum << " enters the tunnel." << endl;

pthread_cond_signal(&cond);

pthread_mutex_unlock(&lockAccess);

sleep(tunnelTime);

pthread_mutex_lock(&lockAccess);

cout << "Northbound car # " << carNum << " exits the tunnel." << endl;

currentNCarsInTunnel--;

currentCarsInTunnel--;

pthread_cond_broadcast(&cond);

pthread_mutex_unlock(&lockAccess);

}

void *southCar(void* arg) {

int tunnelTime;

int carNum;

bool wait;

struct car *argptr;

argptr = (struct car *) arg;

tunnelTime = argptr->travelTime;

carNum = argptr->carNo;

wait = argptr->waited;

pthread_mutex_lock(&lockAccess);

cout << "Southbound car # " << carNum << " arrives at the tunnel." << endl;

while (currentSCarsInTunnel >= maxSCarsInTunnel || currentCarsInTunnel >= maxCarsInTunnel) {

if (wait == false) {

wait = true;

numCarsWaiting++;

}

pthread_cond_wait(&cond, &lockAccess);

}

currentSCarsInTunnel++;

currentCarsInTunnel++;

cout << "Southbound car # " << carNum << " enters the tunnel." << endl;

pthread_cond_signal(&cond);

pthread_mutex_unlock(&lockAccess);

sleep(tunnelTime);

pthread_mutex_lock(&lockAccess);

cout << "Southbound car # " << carNum << " exits the tunnel." << endl;

currentSCarsInTunnel--;

currentCarsInTunnel--;

pthread_cond_broadcast(&cond);

pthread_mutex_unlock(&lockAccess);

}

Kindly check the attached images below to see the code screenshot and code output.

8 0

4 years ago

(ACCESS 2016)

galben [10]

Explanation:

rowCount() returns the number of rows affected by the last DELETE, INSERT, or UPDATE statement executed by the corresponding PDOStatement object.

7 0

3 years ago

Read 2 more answers

Jane wants to add a chart to her presentation so she’ll click the Insert tab and in the Images group, she’ll click the Chart but

kap26 [50]

(A. Stevie only) because You need to go the illustrations tab in order to click on the chart button.

Jane clicked on images tab so she was wrong.

Mark as brainlest plz :)

3 0

3 years ago