What (who) is bitwise and - definition

COMPUTER OPERATION THAT OPERATES ON VALUES AT THE LEVEL OF THEIR INDIVIDUAL BITS

Binary and; Bitshift; Bitwise; Bit-shift; Bitwise operations; Bit shift; Bitwise NOT; Bitwise AND; Bitwise operator; Bitwise OR; Bitwise negation; Bitwise operators; Bit wise; Bit complement; Bitwise shift; Bit shifting; Bitwise rotation; Bit rotation; Bitwise logic; Bit operators; Bitwise XOR; Bitwise logical operation; Bitwise logical operator; Bit operation; Bit operator; Binary shift; Right-shift operator; Left-shift operator; Bitwise complement; Binary OR; Binary NOT; Logical bitwise operator; Bitwise Right-Shift; Bitwise xor; Bitwise Operation; Shift (bit); Bitshifts; Binary AND; Bitwise or; Bitwise and; Bitwise not; Bit-wise not; Bit-wise NOT; Bit-wise and; Bit-wise AND; Bit-wise xor; Bit-wise XOR; Bit-wise or; Bit-wise OR; Bit shift operation; Bit shift operations; Bit rotate

bitwise

<programming> A bitwise operator treats its operands as a vector of bits rather than a single number. Boolean bitwise operators combine bit N of each operand using a Boolean function (NOT, AND, OR, XOR) to produce bit N of the result. For example, a bitwise AND operator ("&" in C) would evaluate 13 & 9 as (binary) 1101 & 1001 = 1001 = 9, whereas, the logical AND, (C "&&") would evaluate 13 && 9 as TRUE && TRUE = TRUE = 1. In some languages, e.g. Acorn's BASIC V, the same operators are used for both bitwise and logical operations. This usually works except when applying NOT to a value x which is neither 0 (false) nor -1 (true), in which case both x and (NOT x) will be non-zero and thus treated as TRUE. Other operations at the bit level, which are not normally described as "bitwise" include shift and rotate. (1995-05-12)

bitwise

¦ adjective Computing denoting an operator in a programming language which manipulates the individual bits in a byte or word.

bitwise complement

The bitwise complement of a bit field is a bit field of the same length but with each zero changed to a one and vice versa. This is the same as the ones complement of a binary integer. (1994-11-14)

Wikipedia

Bitwise operation

In computer programming, a bitwise operation operates on a bit string, a bit array or a binary numeral (considered as a bit string) at the level of its individual bits. It is a fast and simple action, basic to the higher-level arithmetic operations and directly supported by the processor. Most bitwise operations are presented as two-operand instructions where the result replaces one of the input operands.

On simple low-cost processors, typically, bitwise operations are substantially faster than division, several times faster than multiplication, and sometimes significantly faster than addition. While modern processors usually perform addition and multiplication just as fast as bitwise operations due to their longer instruction pipelines and other architectural design choices, bitwise operations do commonly use less power because of the reduced use of resources.

https://en.wikipedia.org/wiki/Bitwise operation