What is "atca"

ATCA or Atca may refer to:

• Advanced Telecommunications Computing Architecture, a series of specifications by the PCI Industrial Computer Manufacturers Group
• The Turkish town of Atça
• The Alien Tort Claims Act, a United States law which provides redress for violations of customary international law. Also known as the Alien Tort Statute.
• The Australia Telescope Compact Array, a radio telescope at the Paul Wild Observatory, twenty five kilometres (16 mi) west of the town of Narrabri in Australia.

Atça is a town in the district of Sultanhisar in Turkey's Aydın Province. The plan of the town comes from Paris's Place de l'Étoile.