1
: , . , , .
:
1. .
2. : , , .
3. .
4. .
5. .
Ͳ ²Ҳ
. , , 10. - 0, 1, 2.3, 4, 5, 7, 8 9. .
, , 2. (0 1) , ( 10). 2 ( ), (' ) (2, 21, 22, 23, 24, ..).
10110 = (124 = 16) + (023 = 0) + (122 = 4) + (1x2' = 2) + (0x2 = 0) =
= (16+ 0 + 4 +2 + 0) = 22.
, 1 16, 0 - 8, 1 - 4, - 2 0 - 1. , 22. ' IP- 32 (4 ).
س 16 . - . 10 (0, 1, 2, 3, 4, 5, 6, 7, 8, 9), - , : , , , D, F. 10, 11, 12, D 13, 14.; F - 15.
12 = (1163 = 65536) + (10()162 = 2560) + (2161 = 32) + (12() 16 = 12) = = (65536 + 2560 + 32 + 12) = 68144.
. . , . - , .
.
168 .
1. 128 , 168, , 1. 168-128 = 40.
|
|
2.64 , 40, , 0.
3.32 , 40, , 1. 40-32 = 8.
4.16 , 8, , 0.
5.8 8 (, 䒺 ); ' 1. 8-8 = 0, , 0.
6. 10101000 - 168.
-, ., 255 . , IP-. , 2, . , 650 29 = 512, .
, . -, , .
, .
01110000
0x2 = 0
+
0x2' = 0
+
022 = 0
+
023 = 0
+
124=16
+
125 = 32
+
126 = 64
+
027 = 0
( 2, 1.) -, , - . 255 , . 2. , , 10 , 512, 9- - 256, 1.
- . Cisco Systems 16 . , , 0010000100000010 2102 .
, 4 . ( ) 1010, - 1100 '. 10101100.
, , - 10.15.129.201 00001010.00001111.10000001.11001001:
10 = 00001010, 15 = 00001111, 129 = 10000001, 201 = 11001001.
Ethernet Token Ring 48 , 6 ( ). (Oct- .) 6- , 12- . 4 (24 = 16).
|
|
10101010.11110000.11000001.11100010.01110111.01010001
:
AA.F0.C1.E2.77.51.
= 1010, = 1010,
R = 1111, 0=0000,
=1100, 1=0001,
= 1110, 2=0010,
7=0111, 7=0111,
5=0101, 1=0001.
- 4 , AAF0.C1E2.7751.
' "" . , - , , , 0x1234 , 1234.
(, ..), 16, . , , - 0 9 F.
. ³ 8- , , . , , , 5D 0x5D.