Scoreboard

A scoreboard is a large board for publicly displaying the score in a game. Most levels of sport from high school and above use at least one scoreboard for keeping score, measuring time, and displaying statistics. Scoreboards in the past used a mechanical clock and numeral cards to display the score. When a point was made, a person would put the appropriate digits on a hook. Most modern scoreboards use electromechanical or electronic means of displaying the score. In these, digits are often composed of large dot-matrix or seven-segment displays made of incandescent bulbs, light-emitting diodes, or electromechanical flip segments. An official or neutral person will operate the scoreboard, using a control panel.
An ice hockey scoreboard will at the minimum display the time left (in North America) or played (in Europe), the number of goals scored by each team as well as any penalties currently being served. Additional information such as shots on goal may be shown on smaller scoreboards located in the arena. Tenths of a second are usually displayed within the last minute of each period.
In multipurpose arenas, the penalties being served will appear in the multi-purpose panels, used for player statistics in basketball, with shots on goal in the same position as team fouls for basketball. In some arenas the sideboards of the hockey rink feature three or four LED displays the size of one advertising hoarding which will show scoring information and promotional messages, though their limited visibility makes them rarely used.
A horn or buzzer must be used to signal end of timeouts or period. In most games, the home team will either play a recording of or use a separate goal horn, usually an Airchime, Kahlenberg, or Buell when their team scores. These aren't required, but are rather used as a celebration, and they are often unique to their team and easily identifiable. A notable example would be the recording that the Boston Bruins play which is used by many other teams. 
Category:Terminology