A scoreboard is a device used to display the current score or progress in a game, competition, or event. It typically consists of two separate sets of digits that can be rotated to show either a single-digit number (0 through 9) or a pair of letters (AA through ZZ). The scoreboard is commonly used in sports such as football, basketball, and baseball, where it displays the scores of both teams. It may also display other information like time remaining, penalties, or player substitutions. In non-sporting contexts, a scoreboard can be used to track progress towards a goal, show comparative data between different groups or entities, or simply provide visual feedback on performance metrics.