H2

H2, H02, or H-2 may refer to:

==Arts and media== Armenia 2 (H2), a private television company broadcasting in Armenia and Nagorno-Karabakh H2 (A&E Networks), the rebranded name of the former channel History International H2 (American TV channel), the American version of the channel H2 (manga), a baseball manga by Mitsuru Adachi Halo 2, a video game for the Xbox, created and developed by Bungie Halloween II (2009 film), initially abbreviated to H2 Hollywood Squares, referred to as H2 informally during the 2002–2004 seasons ==Computing== , level 2 heading markup for HTML Web pages, see HTML element#heading H2 Database Engine, a DBMS written in Java DSC-H2, a 2006 Sony Cyber-shot H series camera HTTP/2, major revision of HTTP, often abbreviated in discussions as h2, and identifying itself to other servers as h2 in TLS negotiation or h2c in the HTTP Upgrade header LGA 1155 CPU socket, also known as Socket H2