1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ostrovityanka [42]
2 years ago
15

How do u use this app?

Computers and Technology
2 answers:
Serga [27]2 years ago
4 0
You ask and answer questions
nevsk [136]2 years ago
3 0

Answer:

hahhahabha

Explanation:

bahubfwbufbwufbuwebfue

You might be interested in
Create a poem about MS powerpoint presentation
iren2701 [21]
You could use poem generator online or see samples and change some words
5 0
3 years ago
Write a function DrivingCost() with input parameters drivenMiles, milesPerGallon, and dollarsPerGallon, that returns the dollar
posledela

Answer:

#include <iostream>

using namespace std;

double DrivingCost(int drivenMiles,double milesPerGallon,double dollarsPerGallon)

{

   double dollarsperMile=dollarsPerGallon/milesPerGallon;//calculating dollarsperMile.

   return dollarsperMile*drivenMiles;//returning thr driving cost..

}

int main() {

double ans;

int miles;

cout<<"Enter miles"<<endl;

cin>>miles;

ans=DrivingCost(miles,20.0,3.1599);

cout<<ans<<endl;

return 0;

}

Output:-

Enter miles

10

1.57995

Enter miles

50

7.89975

Enter miles

100

15.7995

Explanation:

In the function first I have calculated the dollars per mile and after that I have returned the product of dollarspermile and driven miles.This will give the cost of the Driving.

4 0
3 years ago
Simple geometry can compute the height of an object from the the object's shadow length and shadow angle using the formula: tan(
agasfer [191]

Answer:

The program to this question can be given as:

Program:

#include <stdio.h>  //include header files

#include<math.h>

int main()    //main method  

{        

   double treeHeight = 0.0;         //declare variables

and assign value

   double shadowLength = 0.0;  

   double angleElevation =  0.11693706;

   // (0.11693706 radians = 6.7 degrees) convert number into angle.      

   shadowLength = 17.5;  

treeHeight = shadowLength * tan(angleElevation);   //convert number into angle

   printf("Tree height: %lf\n", treeHeight);   //print value.

   return 0;  

}

Output:

Tree height: 2.055778

Explanation:

In the above C language program firstly we include the headers. In this header file, we include a (math.h) header file this file helps to use the math function. Then we declare the main method in the main method we declare the variable that is given in the question that are treeHeight, shadowLength , angleElevation. All the variable datatype is double because it stores the floating-point value. Then we apply the formula that is  treeHeight = shadowLength * tan(angleElevation). In this formula, the treeHeight variable holds the value. Then we print the variable value for print the double value we use the lf(that is long float).

7 0
3 years ago
Write the definition of a method, isReverse, whose two parameters are arrays of integers of equal size. The method returns true
Marat540 [252]

Answer:

   public static boolean isReverse(int [ ]a, int [ ]b ){

       for (int i=0;i<a.length;i++)

       {

           if(!(a[i] == b[a.length-i-1]))

               return false;

       }

       return true;

       }

Explanation:

Using a for loop, we go through the elements of the first array. The if comapres and checks if any of the values are not the same as the appropriate value on the other array, if it is so, then it is not a reverse, and we return false. else  we return true.

7 0
3 years ago
a) What are the 'interrupts' in a computer system? Describe the approaches to deal with multiple interrupts in a system.b) Analy
Fynjy0 [20]

Answer:

a)

An interrupt is a signal sent to the processor which indicates an event that needs immediate attention.

  • Interrupts are usually sent to CPU by external or I/O devices.
  • This notifies the processor to a high-priority process that requires the current process to be disrupted.
  • Interrupts requests the processor to stop its ongoing operations and run appropriate part of OS.
  • If the request is acknowledged, the processor may respond by halting its current operation, saving its state. Processor then executes a function called an interrupt handler to handle the event that needs attention.
  • This interrupt is temporary, and processor continues normal activities after the interrupt operator stops, unless the interrupt shows a fatal error.
  • The CPU must inform the device that its interrupt request is acknowledged so that it stops sending interrupt signals.
  • Interrupts are usually used for multitasking purposes in real time computers.
  • There are two basic types of interrupts: hardware and software interrupts.
  • A hardware interrupt requests are generated by hardware devices, to indicate that it needs attention from the operating system.
  • Software interrupts are either requested by programs when they want  some service from the operating system or these interrupts are generated by processor itself on executing particular instructions or when certain requirements are met.

Approaches to deal with multiple interrupts:

There are two approaches to handle multiple interrupts.

  1. One approach is to disable interrupts while an interrupt is being processed. A disabled interrupt means that processor will ignore that interrupt request. If during this phase an interrupt happens, it usually remains pending and will be reviewed by the processor after the interrupts has been enabled by the processor. So, when a program is being executed and an interrupt happens, interrupts are disabled immediately.Upon completion of the interrupt handler procedure, interrupts are allowed before the user program resumes, and the processor checks if other interrupts have occurred. This is a simple technique which deals with the interrupts sequentially. But it does not deal with priority requirements.
  2. Second approach is to define interrupt priorities to enable a higher priority interrupt to cause disruption of a lower-priority interrupt handler. For example take a system with 3 I/O devices: printer, disk and communication line with priorities 3,5, and 7. Lets say when a program starts a printer interrupt happens. The execution continues at printer ISR. At some time interval communication interrupt happens whilst this ISR is still executing. Due to the higher priority of the communication line than the printer, the interrupt is accepted and printer routine is interrupted. Its state is placed on stack and now execution resumes at communication line ISR. Now at some time interval the disk interrupt happens while communication routine is still executing. As the priority of disk interrupt is lower so this is held and communication isr execute completely. Suppose communication ISR finishes, then the previous state is resumed which is printer's ISR execution. But as the disk has higher priority than printer, the processor continues execution in disk ISR. After the completion of disk routine execution, the printer ISR is resumed. After the printer ISR execution is completed the control goes back to the user program.

b) Benefits of using multiple bus architecture compared to single bus architecture are as follows:

  • In a multiple bus architecture each pathway is tailored to deal with a specific type of information. This enhances performance as compared to single bus architecture which is used by simple computers to transfer data onto single bus. Performance enhancement is an important reason for having multiple buses for a computer system.
  • Multiple bus architecture allows multiple devices to work at the same time. This reduces waiting time and enhances the speed of the computer as compared to single bus architecture in which all the components share a common bus. Sharing a common bus causes bus contention which results in slowing down the computer and waiting time increases.
  • Having several different buses available allows to have multiple choices for connecting devices to computer system.
  • Bus designs changes, with the introduction of new types and forms from time to time. Multiple bus architecture with several buses can support equipment from different time periods and helps to retain obsolete equipment such as printers and old hard drives, and also add new ones. This is the compatibility benefit of using multiple bus architecture.
  • CPU places heavy load on bus which carries data from memory and peripheral traffic. So nowadays computers take on multi core model with multiple buses required. So multiple bus architecture is a good option for such systems as it carries more amounts of data through the processor with minimum wait time.

3 0
2 years ago
Other questions:
  • 1. What does it mean to say that a country’s land area is positively correlated with its population?
    12·2 answers
  • Anna is making a presentation on the solar system. She wants to emphasize the planet names as they appear one by one on the pres
    11·1 answer
  • How to see the range of values of vty lines?
    15·1 answer
  • The "origin" of the cartesian plane in math is the point where x and y are both zero. Given a variable, origin of type Point-- a
    5·1 answer
  • Which type of password would be considered secure
    13·2 answers
  • Write a function that, given an array A of N integers, of which represents loads caused by successive processes, the function sh
    15·1 answer
  • In the program below, numA is a _____.
    8·2 answers
  • state an application that would be better to write c++ than java and give a rationale for your answer
    5·1 answer
  • Explain with examples what is software​
    6·1 answer
  • 7.2.4 Area of Triangle HELP PLEASE!! (JAVA SCRIPT) I WILL WAIT FOR THE SOLUTION.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!