"Copy-paste" is a computer function that allows users to duplicate text, images, or other data from one location and place it in another. This process typically involves selecting the desired content, using the "copy" command to store it temporarily, and then using the "paste" command to insert it elsewhere. It is commonly used in software applications like word processors and graphic design programs. This function is essential for improving efficiency and productivity, as it saves time by eliminating the need to retype or recreate content. Users can easily transfer information between different documents or applications, making it a fundamental skill in digital communication and data management.