00000011

00000011 is a binary numeral consisting of eight bits (a byte) where the two least significant bits are set to 1 and all higher bits are 0. This pattern represents the value three in unsigned binary form.

In decimal it equals 3, and in hexadecimal it is 0x03. The leading zeros emphasize fixed-width binary representation, which is common in byte-oriented contexts such as data encoding and bitwise operations.

In ASCII and Unicode, the code point U+0003 corresponds to the End of Text control character (ETX). ETX has historically been used to indicate the end of a text block or message in various communication protocols and data streams.

In computing, the pattern 00000011 is often used as a bitmask for operations that set or test the lowest two bits of a byte. For example, applying a bitwise AND with 00000011 preserves only the two least significant bits of a value.

Note on notation: some programming languages treat numbers with a leading zero as octal; for example, in C and related languages 00000011 is interpreted as octal 11, which equals decimal 9. In Python 3, leading zeros in numeric literals are not allowed, so such a literal would be invalid. Because of these differences, the exact value of a string like 00000011 can vary by context and language, even though the binary pattern itself unambiguously represents the value three in standard binary notation.