Cara nukarin 32 bit kepada dot desimal

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32 bit angka tersebut dapat dituliskan dalam bentuk yang lebih manusiawi yakni dalam format bilangan desimal. Caranya adalah dengan membagi angka 32 bit tersebut menjadi 4 bagian masing-masing 8 bit. Setiap bagian tadi disebut octet.
11000000101010000000101000000001
8 bit8 bit8 bit8 bit
Kemudian untuk setiap 8 bit bilangan biner dapat kita konversi menjadi bilangan desimal, sehingga kita dapatkan 4 buah angka desimal. Cara mengkonversi bilangan biner menjadi bilangan desimal adalah dengan menggunakan tabel berikut ini :
Nilai dalam desimal1286432168421
Bitke-1ke-2ke-3ke-4ke-5ke-6ke-7ke-8
Yang berarti :
  1. bit ke – 1 bernilai 128
  2. bit ke – 2 bernilai 64
  3. bit ke – 3 bernilai 32
  4. bit ke – 4 bernilai 16
  5. bit ke – 5 bernilai 8
  6. bit ke – 6 bernilai 4
  7. bit ke – 7 bernilai 2
  8. bit ke – 8 bernilai 1
Misal, dengan menggunakan tabel diatas, 8 bit 11110000 ini dapat kita konversi menjadi bilangan desimal seperti berikut :
Nilai dalam desimal1286432168421
Bit11110000
Yang berarti nilai desimal dari angka 8 bit 11110000 tersebut adalah 128+64+32+16+0+0+0+0 = 240.
Contoh lagi, 8 bit 10101010 ini dapat kita konversi menjadi bilangan desimal seperti berikut :
Nilai dalam desimal1286432168421
Bit10101010
Yang berarti nilai desimal dari 10101010 adalah 128+0+32+0+8+0+2+0 = 170.
Jadi, dengan metode yang sama, 32 bit angka biner berikut 11000000 10101000 00001010 00000001 dapat kita konversi menjadi bentuk decimal seperti ini :
11000000101010000000101000000001
192168101
Setelah kita dapatkan 4 angka desimal kita dapat menuliskannya secara berurutan dengan dipisahkan huruf titik (.) seperti ini 192.168.10.1.
Penulisan IP address dengan format diatas dikenal dengan sebutan dotted-decimal.
32-bit11000000 10101000 00001010 00000001
Dotted-decimal192.168.10.1

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