In simple terms, it shines light at what it is scanning and darker areas reflect less light back, enabling it to detect where there are markings, and so it can determine what is on whatever it is scanning and produce an image.
Yes, a scanner is AN input device.
a scanner is an input device which is used to converet image into digital form
scanner
A scanner.
A scanner is an input device, like a microphone. You cannot send data from your computer to the scanner, only from the scanner to the computer.
Scanners can only be used as an input device. They scan the image placed inside/ontop and digitalise it and display it on your computer screen. The only type of scanner that can output is an "all-in-one" scanner/printer that can print out the images you scan in or other images from your PC, but that is not technically a scanner, it is a scanner, printer combination. So no, Scanners can only be used as input devices.
A scanner is an input device because it sends (or 'inputs') information to the computer.
Scanner is a input device. Printer is one of the output device. All like keyboard, scanner, mouse are input devices.
No, it is an input. The data goes in to the computer from the scanner, not out of the computer to the scanner.
No, a scanner is an input device.
A scanner is an input device because you cannot send data from your computer to the scanner, only from the scanner to the computer.
Input