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canvas koyak
torn canvas

oil on canvas, 140 x 201 cm; solomon r. guggenheim museum, new york
oil on canvas, 140 x 201 cm; solomon r. guggenheim museum, new york

a whiteboard (also known as a wipeboard, markerboard, dry-erase board, dry-wipe board or a pen-board, and also commonly mistaken as a greaseboard) is a name for any glossy surface, most commonly colored white, where non-permanent markings can be made. whiteboards operate analogously to chalkboard in that they allow markings to temporarily adhere to the surface of the board. the popularity of whiteboards increased rapidly in the mid-1980s and they have become a fixture in many offices, meeting rooms, school classrooms, and other work environments. the term whiteboard is also used metaphorically to refer to features of computer software applications that simulate whiteboards. virtual whiteboards allow one or more people to write or draw images on a simulated canvas. this is a common feature of many virtual meeting, collaboration, and instant messaging applications. today, the term whiteboard is also used to refer to interactive whiteboard.
whiteboard eraser