DC

Washington, D.C., often written as Washington, DC or simply DC, is the capital of the United States. It is a federal district created in 1790 and not part of any state. It houses the U.S. federal government, the White House, Capitol, and Supreme Court, along with many federal agencies and monuments. The district has a local government, but Congress retains authority in many areas; statehood and voting rights remain ongoing issues.

Direct current (DC) is an electrical current that flows in one direction, unlike alternating current (AC). It is produced by batteries, solar cells, and many power supplies, and powers most electronic devices. High-voltage DC is used in some long-distance transmission links and in data centers.

DC Comics is an American comic book publisher with origins in 1934 through National Allied Publications, which evolved into National Comics Publications and later the DC brand. It publishes superheroes such as Superman, Batman, and Wonder Woman, and operates the DC Universe across comics, film, and television.

Data center (DC) is a facility housing computer systems, storage, networking, and the power and cooling infrastructure that keep them running. Data centers support cloud services, enterprise IT, and web hosting, requiring redundancy, security, and energy efficiency.

Distribution center (DC) refers to a logistics facility where goods are received, stored, and sorted for distribution to retailers or customers. Distribution centers optimize inventory handling, order fulfillment, and transportation planning within supply chains.

In computing, dc is a reverse-Polish calculator program available on Unix-like systems. It supports arbitrary-precision arithmetic, scripts, and a range of mathematical operations.