COMPUTER PERIPHERALS
PRINTERS AND SCANNERS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
A scanner is a device that scans images from photographic prints and posters
|
|
|
A scanner is a gadget that scans images from photographic prints and posters
|
|
|
A scanner is a tool that scans images from photographic prints and posters
|
|
|
A scanner is a device that takes images from photographic prints and posters
|
Detailed explanation-1: -A scanner is a device that captures images from photographic prints, posters, magazine pages and similar sources for computer editing and display. Scanners work by converting the image on the document into digital information that can be stored on a computer through optical character recognition (OCR).
Detailed explanation-2: -An optical scanning device combines specialized computer hardware and software. The hardware devices capture an image and software converts the image to computer-readable data. There are four main types of optical scanning technologies: Optical Mark Reading (OMR) Optical Character Recognition (OCR)
Detailed explanation-3: -When referring to hardware, a scanner, image scanner, or optical scanner is a hardware input device that optically “reads” an image and converts it to a digital signal. For example, a scanner may convert a printed picture, drawing, or document (hard copy) to a digital file that can be edited on a computer.