Buffers are typically used when there is a difference between the rate at which data is received and the rate at which it can be processed, or in the case that these rates are variable, for example in a printer spooler or in online video streaming.
Luke Spencer leaving 'General Hospital': Laura returning as Anthony Geary exits. FILE - In this April 26, 2015, file photo, Anthony Geary accepts the award for outstanding lead actor in a drama series for General Hospital, at the 42nd annual Daytime Emmy Awards in Burbank, Calif. After 37 years, Geary finishes his role as Luke Spencer on ABC's General Hospital on Monday, July 27, 2015.
Spencer has appeared in films such as In My Sleep (2010), Cowboys & Aliens (2011), This Means War (2012), Chasing Mavericks (2012), The Haunting in Connecticut 2: Ghosts of Georgia (2013), Oz the Great and Powerful (2013), and This Is Where I Leave You (2014).