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?

What is the major feature of the World Wide Web that makes it simple to learn and use?

Which of the following represents the fastest data transmission speed?

A combination of hardware and software that allows communication and electronic transfer of information between computers is a-

The device that reconciles differences between computers and phones is the-