10000100

10000100 is an eight-bit binary numeral. In binary notation, the pattern has ones at the most significant bit (bit 7) and at bit 2, with zeros elsewhere. In unsigned decimal, the value is 132. In hexadecimal, it is 0x84, and in octal it is 0o204. The pattern can be interpreted as a simple bitmask, where the high bit and the bit corresponding to 4 are set.

In two's complement eight-bit representation used for signed integers, 10000100 represents -124. This is because the value modulo 256 is 132, and the negative of 132 in an eight-bit two's complement scheme is 256 − 132 = 124, yielding -124 when interpreted as a signed value.

In character encoding, 0x84 falls outside the standard ASCII range. In common eight-bit encodings such as ISO/IEC 8859-1, 0x84 is generally a control code and not a printable character, and its interpretation can vary by encoding system or font.

Usage and context: as a bitmask or flag in low-level programming and digital communications, 10000100 can represent a combination of features or statuses when combined with other bit patterns through bitwise operations. It can also appear in protocol or hardware register specifications as part of an 8-bit field.

See also: Binary numeral system; Hexadecimal; Octal; Two's complement; Bit mask.