ocr: Messages Mailbox Tasks A Mailboxl - with Messages Waitingl M-- --M I <3> for Tasksl L/ AMailboxl /I with Tasks Waitingl <-2 >- ---- ----- - T----T for Messagesl / A mailbor is a task/message bank account. A message is queued until a task: receives il. A task 28 queued until a message reaches it.
