-- card: 52504 from stack: in
-- bmap block id: 52916
-- flags: 0000
-- background id: 49215
-- name: What is OSI Model? C/13
----- HyperTalk script -----
on openCard
  beenHereFlag 3,1
  -- first param is item #, second is line # (of global)
  pass openCard
end openCard


-- part 2 (button)
-- low flags: 00
-- high flags: 0000
-- rect: left=478 top=319 right=341 bottom=498
-- title width / last selected line: 0
-- icon id / first selected line: 1401 / 1401
-- text alignment: 1
-- font id: 0
-- text size: 12
-- style flags: 0
-- line height: 16
-- part name: Prev
----- HyperTalk script -----
on mouseUp

end mouseUp



-- part contents for background part 11
----- text -----
The Middle Functions  (1 of 2)

-- part contents for background part 24
----- text -----
So, what happens in the middle?  

The middle functions are concerned with identifying the sending and receiving nodes, initiating the session between them, and addressing and routing the data that is sent between them.

The middle functions are also concerned with ensuring that data is received free from errors.

-- part contents for background part 25
----- text -----
The Middle Functions

-- part contents for background part 3
----- text -----
What is the OSI Model?

-- part contents for background part 32
----- text -----
52504