MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -A webcam captures digital pictures as it is an input device. These images are forwarded to the computer that moves them to a server. Then, these pictures can be transmitted to the hosting page from the server.

Detailed explanation-2: -An image scanner-often abbreviated to just scanner-is a device that optically scans images, printed text, handwriting or an object and converts it to a digital image.

Detailed explanation-3: -A webcam is a hardware camera and input device that connects to a computer and the Internet and captures either still pictures or motion video of a user or other object. Today, most webcams are either embedded into the display with laptop computers or connected to the USB or FireWire port on the computer.

Detailed explanation-4: -A digital camera is an input device that captures images (and sometimes video) digitally. Digital cameras use an image sensor chip to capture the image, rather than the film used by a traditional camera.

Detailed explanation-5: -A digital camera is a camera that captures photographs in digital memory. Most cameras produced today are digital, largely replacing those that capture images on photographic film.