<<<<< TERMINAL SCREEN DRAWING SUBROUTINE >>>>>>>>

UTERMINAL

                    TERMINAL                  

NEXT

 $V1$

NEXT3

 $PROMPT$

     <<<<<< TIME POSE SUBROUTINE >>>>>>>>>

PAUSE

If they want to quit, do so

PAGETURNER

If they want to quit, do so

    <<<<<< 4 BOTTOM LINES CLEANING SUBROUTINE >>>>>>

ENCORE5

    <<<<<< REVIEW CLEANING SUBROUTINE >>>>>>

ENCORE

    <<<<<< CLEAN THE INSIDE OF BOUNDED ARE ONLY >>>>>

BOX

                          COMMAND                       

GO

 sync

 SYNTAX

       sync

 FUNCTION

       sync flushes all data buffers and updates

       the super-block, i.e. it causes all information

       from the main memory to be transferred to the disk.

 NOTE: sync should be used by programs

       which examine a file system, and is

       absolutely mandatory before unmounting

       a file system (you do not want to unmount

       a file system if there is still some I/O

       to be performed on it). It is a good idea

       to type sync several times.

 Let's try entering sync 

 for practice!

 $PROMPT$

 That is correct!

 You've got it on the 2nd try.

 Good, you understand the concept.

 Please type sync

 Please type sync

 You will be helped this time.

 $PROMPT$

FORGET1

 $PROMPT$sync                                  

 Observe the result on the terminal!

 $PROMPT$