0010

0010 is a string that can denote several things depending on context: a numeral in different bases, a fixed-width identifier, a code point in character encoding, or a catalog or model number.

As a binary numeral: 0010 is the binary representation of the decimal value 2. Leading zeros are common in binary to indicate bit width, for example in 4-bit or 8-bit fields.

As decimal text: If interpreted as decimal digits, 0010 equals 10. Leading zeros are often used for formatting in inventories, dates, or serial numbers, where the width of the field is fixed.

In Unicode and ASCII: The code point U+0010 designates the control character Data Link Escape (DLE). It is a non-printing control code used for signaling in communication protocols and is not meant for display.

In hexadecimal context: When read as a hexadecimal literal such as 0x0010, the value is 16 decimal. This usage appears in programming languages that denote hex values with a 0x prefix.

In historical or catalog use: 0010 may appear as a year in historical timelines (Year 10 CE written as 0010), or as a model or product number in catalogs, where leading zeros help with sorting and alignment.

See also: binary number, fixed-width field, Unicode, ASCII, decimal notation, hexadecimal notation.