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Pentru ca lucrurile sa fie clare, in lucrul cu numere binare sau<br />

zecim<strong>al</strong>e exista conventia ca numerele binare sa se noteze<br />

astfel:<br />

B'11011011' iar numerele zecim<strong>al</strong>e astfel:<br />

D'125'<br />

Sistemul hexazecim<strong>al</strong>.<br />

Datorita simplitatii in scrierea numerelor binare s-a decis<br />

impartirea octetului in doua quartete(4 cifre binare) si fiecare<br />

qurtet este reprezentat de cate o cifra hexazecim<strong>al</strong>a.<br />

Iata tabelul de conversie a <strong>un</strong>ui quartet in cifre hexazecim<strong>al</strong>e si<br />

zecim<strong>al</strong>e:<br />

Binar Hexazecim<strong>al</strong> Zecim<strong>al</strong><br />

B'0000' 0x0 0<br />

B'0001' 0x1 1<br />

B'0010' 0x2 2<br />

B'0011' 0x3 3<br />

B'0100' 0x4 4<br />

B'0101' 0x5 5<br />

B'0110' 0x6 6<br />

B'0111' 0x7 7<br />

B'1000' 0x8 8<br />

B'1001' 0x9 9<br />

B'1010' 0xA 10

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