() (, ) , . , () . IBM , Macintosh Apple.
26.016-81
( 26.016-81) :
1. (, , , );
, . , , (1:1). (1:).
( ), .
.
2. (, , - );
3. (, );
4. (; ; ).
34. OSI CAN ?
CAN OSI. (. data link layer) , . , , , ( ) . , . (. physical layer) , . , , . ,
35. ?
, , . .
|
|
36. CAN ?
, . 7 : 1) ( , , . 2) RTR. 3) 4) 5) CRC 6) 7) .
37. CAN ?
, . 7 . - - RTR-. 11 , 7 1. RTR . , . , RTR - . , , . , , . , . , . . '1' (recessive), . '0' (dominant), .
38. CAN
, . 7 . - - 6 (2 , 4 ). . - 0 8
39. RTR-?
. RTR- - "0". - "1".