ACM SIGARCH is the Association for Computing Machinery's Special Interest Group on computer architecture, a community of computer professionals and students from academia and industry involved in research and professional practice related to computer architecture and design. The organization sponsors many prestigious international conferences in this area, including the International Symposium on Computer Architecture (ISCA), recognized as the top conference in this area since 1975. Together with IEEE Computer Society's Technical Committee on Computer Architecture (TCCA), it is one of the two main professional organizations for people working in computer architecture.
ACM SIGARCH was formed in August 1971, initially as a Special Interest Committee (a precursor to a SIG), with Michael J. Flynn as the founding chairman. Flynn was also the founding chairman of IEEE Computer Society's TCCA and encouraged from the beginning, joint cooperation between the two groups. Many of the joint symposiums and conferences are the leading events in the field.
ACM SIGARCH Computer Architecture News is a newsletter, started in January 1972, that publishes refereed articles about computer hardware and its interactions with compilers and operating systems.
SIGARCH offers a variety of awards for outstanding contributions to computer architecture: