Mechanical mouse has a ball that turns rollers inside. If friction is lost between the ball and the mousing surface, or between the ball and the rollers, the mouse fails to work. In order to assure good contact with the mousing surface, the ball must be fairly heavy. When you change directions with the mouse, you must make the ball change rolling directions--an action that inertia likes to prevent.
An optical mouse makes use of an LED and some optics to detect surface texture and the changes in it as the mouse is moved. There are no moving parts
Answer:
// here is code in C.
// headers
#include <stdio.h>
// main function
int main(void) {
// variable declaration
int favorite_number;
// ask user to enter favorite number
printf("enter your favorite number : ");
// read the number
scanf("%d",&favorite_number);
// print the message
printf("your favorite number is: %d",favorite_number);
return 0;
}
Explanation:
Declare a variable "favorite_number" of integer type.Ask user to enter favorite number and assign it to favorite_number.Then print the message which include the favorite number.
Output:
enter your favorite number : 77
your favorite number is: 77
Phones, they help me with school work and provide entertainment.
I would say B would be the best answer choice out of the given choices
