Procedure activation record (An important unit of memory allocation) Memory allocated for the local data of a procedure or function An activation record must contains the following sections Space for arguments ( parameters Space for bookkeeping information, including return address Space for local data Space for local temporaries Note: this picture only illustrates the general organization of an activation recordProcedure activation record (An important unit of memory allocation) Memory allocated for the local data of a procedure or function. An activation record must contains the following sections: Space for arguments ( parameters ) Space for bookkeeping information, including return address Space for local data Space for local temporaries Note: this picture only illustrates the general organization of an activation record