Graphics tablet
A Graphics tablet is a computer input device which allows a user to hand draw images and graphics, in the same way an individual may draw using a pencil and paper. It can be used to capture data or hand written signatures. Other uses include tracing an image which is placed to the surface. The device consists of a flat surface which the user may draw on using a stylus. The image being produced appears on the computer monitor.
scanner
The Scanner is a input device that scans documents such as photographs and pages of text. The document is scanned and then converted into digital format. This electronic version of the document can be viewed and edited on a computer. Scanners work in conjunction with computer software programs, which import data from the scanner.