Which of the following represents one billion characters?
Dot-matrix is a type of-
A computer gets -------- with the help of mouse or keyboard-
If you regularly send letters to people, what type of program would you use to create the letters?
A bar code reader is an example of a(n)-
Which of the following is an input device that, when moved by the user on a flat surface, causes a pointer on the screen to move accordingly?