What is the name of the program that takes high-level code and transforms it into machine-level code?

80. A .......... is used to read or write data.<br>A. CD B. VDU C. ROM D. RAM

Volgvan

Answer:

Depending on exactly what they mean by read and write, both A and D are valid. In fact, if you read that as "read or write" as being a logical OR and not the logical AND that the sentence probably intends, then all four answers could be correct.

What they probably mean to say though is "..... is used as a read/write storage medium", in which case A is the correct answer.

A. Data can be written to or read from a CD. This is probably the "right" answer

B. A human can "read" data from a Visual Display Unit, and the computer "write" it. That of course is not the intended meaning though.

C. Data can be read from Read Only Memory, but not written to.

D. Data can be both read and written to Random Access Memory, but not retained after the computer is powered off.

8 0

2 years ago

What is a traffic controller?what are its functions?

olchik [2.2K]

Answer:

A traffic controller is basically a system design to regulate traffic in a controlled manner with a set of traffic rules to follow so as to ensure public safety .

The main functions of a traffic light controller are listed below:

To direct and regulate vehicular and pedestrian traffic
To ensure safety of construction workers, emergency response team and public in general in order to avoid accidents
These also uses CCTV and other monitoring system to manage flow of traffic and suggestion concerned with traffic congestion. These are provided by local or state authorities.
To ensure smooth traffic flow in order to save time and chaos.

4 0

2 years ago

2-Write test programs in java to determine the scope of a variable declared in a for statement. Specifically, the code must dete

ankoles [38]

Answer:

See Explaination

Explanation:

public class testscope

{

//start of main function

public static void main(String[] args)

{

//varible declration

int i;

int x;

//loop for 10 times

for(i=0; i<10; i++)

{

//initialize value of x to 10

x = 10;

}

//the scope of variable x is visible outside of for loop

System.out.println("The value of x is: "+x);

}

See attachment for sample output

nb:

You can clearly see in the output of Java program the value of x is not printed and program return errors. It means the variable x declared inside for loop does not has scope outside the for loop.

7 0

2 years ago

g Write a program to sort an array of 100,000 random elements using quicksort as follows: Sort the arrays using pivot as the mid

shtirl [24]

Answer:

header.h->function bodies and header files.

#include<iostream>

#include<cstdlib>

#include<ctime>

using namespace std;

/* Partitioning the array on the basis of piv value. */

int Partition(int a[], int bot, int top,string opt)

{

int piv, ind=bot, i, swp;

/*Finding the piv value according to string opt*/

if(opt=="Type1 sort" || opt=="Type3 sort")

{

piv=(top+bot)/2;

}

else if(opt=="Type2 sort" || opt=="Type4 sort")

{

piv=(top+bot)/2;

if((a[top]>=a[piv] && a[top]<=a[bot]) || (a[top]>=a[bot] && a[top]<=a[piv]))

piv=top;

else if((a[bot]>=a[piv] && a[bot]<=a[top]) || (a[bot]>=a[top] && a[bot]<=a[piv]))

piv=bot;

}

swp=a[piv];

a[piv]=a[top];

a[top]=swp;

piv=top;

/*Getting ind of the piv.*/

for(i=bot; i < top; i++)

{

if(a[i] < a[piv])

{

swp=a[i];

a[i]=a[ind];

a[ind]=swp;

ind++;

}

swp=a[piv];

a[piv]=a[ind];

a[ind]=swp;

return ind;

}

void QuickSort(int a[], int bot, int top, string opt)

{

int pindex;

if((opt=="Type3 sort" || opt=="Type4 sort") && top-bot<19)

{

/*then insertion sort*/

int swp,ind;

for(int i=bot+1;i<=top;i++){

swp=a[i];

ind=i;

for(int j=i-1;j>=bot;j--){

if(swp<a[j]){

a[j+1]=a[j];

ind=j;

}

else

break;

}

a[ind]=swp;

}

else if(bot < top)

{

/* Partitioning the array*/

pindex =Partition(a, bot, top,opt);

/* Recursively implementing QuickSort.*/

QuickSort(a, bot, pindex-1,opt);

QuickSort(a, pindex+1, top,opt);

}

return ;

}

main.cpp->main driver file

#include "header.h"

int main()

{

int n=100000, i;

/*creating randomized array of 100000 numbers between 0 and 100001*/

int arr[n];

int b[n];

for(i = 0; i < n; i++)

arr[i]=(rand() % 100000) + 1;

clock_t t1,t2;

t1=clock();

QuickSort(arr, 0, n-1,"Type1 sort");

t2=clock();

for( i=0;i<n;i++)

arr[i]=b[i];

cout<<"Quick sort time, with pivot middle element:"<<(t2 - t1)*1000/ ( CLOCKS_PER_SEC );

cout<<"\n";

t1=clock();

QuickSort(arr, 0, n-1,"Type2 sort");

t2=clock();

for( i=0;i<n;i++)

arr[i]=b[i];

cout<<"Quick sort time, with pivot median element:"<<(t2 - t1)*1000/ ( CLOCKS_PER_SEC );

cout<<"\n";

t1=clock();

QuickSort(arr, 0, n-1,"Type3 sort");

t2=clock();

for( i=0;i<n;i++)

arr[i]=b[i];

cout<<"Quick sort time and insertion sort time, with pivot middle element:"<<(t2 - t1)*1000/ ( CLOCKS_PER_SEC );

cout<<"\n";

t1=clock();

QuickSort(arr, 0, n-1,"Type4 sort");

t2=clock();

cout<<"Quick sort time and insertion sort time, with pivot median element:"<<(t2 - t1)*1000/ ( CLOCKS_PER_SEC );

return 0;

}

Explanation:

Change the value of n in the main file for different array size. Output is in the same format as mentioned, time is shown in milliseconds.

7 0

3 years ago

A measure of the twisting or rotational force that an engine can produce is called

Snowcat [4.5K]

The correct answer is torque.

Torque
A twisting force that tends to cause rotation, commonly used term among mechanics and engineers.

7 0

2 years ago