

multitask [on|off]                                    Default: on

        Display or set NOS multitasking.  When set to 'on', NOS continues
        to run when the user has issued the shell (!) or 'mail' command.
        This enables NOS to process packets and begin sessions even while
        the user is at the DOS prompt or in an external mailer.

        The disadvantage is increased memory usage, since memory cannot
        be allocated by NOS due to the presence of the other program.
        Thus most versions of NOS grab some memory before actually
        shelling out and this remains on the heap after NOS is re-
        entered.  Consequently the amount of core memory available drops
        significantly the first time a shell is used.


