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http://www.online-toolz.com/tools/hex-to-binary-converter.php

# Convertitore da esadecimale a binario

This tools lets you convert from Hex to Binary or the other way around

 Uscita binaria

Converts from Binary to Hex

 Ingresso binario

 Uscita esagonale

Il sistema numerico binario, o sistema numerico in base 2, rappresenta i valori numerici utilizzando due simboli, 0 e 1. Più specificamente, il solito sistema base-2 è una notazione posizionale con una radice di 2. Grazie alla sua semplice implementazione nei circuiti elettronici digitali che utilizzano porte logiche, il sistema binario viene utilizzato internamente da tutti i computer moderni.

In mathematics and computer science, hexadecimal (also base 16, or hex) is a positional numeral system with a radix, or base, of 16. It uses sixteen distinct symbols, most often the symbols 0–9 to represent values zero to nine, and A, B, C, D, E, F (or alternatively a–f) to represent values ten to fifteen. For example, the hexadecimal number 2AF3 is equal, in decimal, to (2 × 163) + (10 × 162) + (15 × 161) + (3 × 160) , or 10,995. Each hexadecimal digit represents four binary digits (bits) (also called a "nibble"), and the primary use of hexadecimal notation is as a human-friendly representation of binary coded values in computing and digital electronics. For example, byte values can range from 0 to 255 (decimal) but may be more conveniently represented as two hexadecimal digits in the range 00 through FF. Hexadecimal is also commonly used to represent computer memory addresses.

Source: Wikipedia
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