-.\" Copyright (c) 2008-2010 Apple Inc. All rights reserved.
+.\" Copyright (c) 2008-2012 Apple Inc. All rights reserved.
.Dd May 1, 2009
.Dt dispatch_async 3
.Os Darwin
.Sh BACKGROUND CONCURRENCY
.The
.Fn dispatch_async
-function may be used to execute trivial backgound tasks on a global concurrent
+function may be used to execute trivial background tasks on a global concurrent
queue. For example:
.Bd -literal
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT,0), ^{