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A bit ( a contraction of binary digit ) is the basic capacity of information in computing and telecommunications ; a bit can have the value of either 1 or 0 ( one or zero ) only.
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bit and contraction
While working with John von Neumann on early computer designs, Tukey introduced the word " bit " as a contraction of " binary digit ".
bit and binary
The coefficients are displayed in their hexadecimal equivalent of the binary representation of bit polynomials from GF ( 2 ).
Intermediate results were binary, written onto paper sheets by electrostatically modifying the resistance at 1500 locations to represent 30 of the 50 bit numbers ( one equation ).
In information theory, one bit is typically defined as the uncertainty of a binary random variable that is 0 or 1 with equal probability, or the information that is gained when the value of such a variable becomes known.
He attributed its origin to John W. Tukey, who had written a Bell Labs memo on 9 January 1947 in which he contracted " binary digit " to simply " bit ".
In computing, a binary prefix is a specifier or mnemonic that is prepended to the units of digital information, the bit and the byte, to indicate multiplication by a power of 1024.
The symbols Kbit, Kbyte, Mbit and Mbyte started to be used as " binary units "—" bit " or " byte " with a multiplier that is a power of 1024 — in the early 1970s.
Bootstrapping in program development began during the 1950s when each program was constructed on paper in decimal code or in binary code, bit by bit ( 1s and 0s ), because there was no high-level computer language, no compiler, no assembler, and no linker.
In the case of a binary CPU, a bit refers to one significant place in the numbers a CPU deals with.
As a crude example, each finger might control one key which corresponds to one bit in a byte, so that using seven keys and seven fingers, one could enter any character in the ASCII set — if the user could remember the binary codes.
The semiconductor memory is organized into memory cells or bistable flip-flops, each storing one binary bit ( 0 or 1 ).
Each word can be accessed by a binary address of N bit, making it possible to store 2 raised by N words in the memory.
Rounding to 24 bits in binary mode means attributing the 24th bit the value of the 25th which yields 11001001 00001111 11011011.
When this is stored using the IEEE 754 encoding, this becomes the significand s with e = 1 ( where s is assumed to have a binary point to the right of the first bit ) after a left-adjustment ( or normalization ) during which leading or trailing zeros are truncated should there be any.
Then since the first bit of a non-zero binary significand is always 1 it need not be stored, giving an extra bit of precision.
Normalization, which is reversed when 1 is being added above, can be thought of as a form of compression ; it allows a binary significand to be compressed into a field one bit shorter than the maximum precision, at the expense of extra processing.
On a typical computer system, a ' double precision ' ( 64-bit ) binary floating-point number has a coefficient of 53 bits ( one of which is implied ), an exponent of 11 bits, and one sign bit.
It worked with 22-bit binary floating-point numbers having a 7-bit signed exponent, a 15-bit significand ( including one implicit bit ), and a sign bit.
In general, for a binary number with bit values: () the product is:
The most common unit of information is the bit, based on the binary logarithm.
* A binary symmetric channel ( BSC ) with crossover probability p is a binary input, binary output channel that flips the input bit with probability p. The BSC has a capacity of bits per channel use, where is the binary entropy function to the base 2 logarithm:
bit and digit
* Data is encoded by assigning a bit pattern to each language alphabet character, digit, other numerical patterns, and multimedia object.
* Data is encoded by assigning a bit pattern to each language alphabet character, digit, other numerical patterns, and multimedia object.
On such systems three octal digits per byte would be required, with the most significant octal digit representing two binary digits ( plus one bit of the next significant byte, if any ).
Octal representation of a 16-bit word requires 6 digits, but the most significant octal digit represents ( quite inelegantly ) only one bit ( 0 or 1 ).
The rightmost or least significant bit is considered bit 0, with value 0x01, the next least significant digit is bit 1, with value 0x02.
A two-level quantum system can carry at most one qubit, in the same sense a classical binary digit can carry at most one classical bit.
In more advanced modems and data transmission techniques, a symbol may have more than two states, so it may represent more than one bit ( a bit ( binary digit ) always represents one of exactly two states ).
When copied to a digit, the three bits were placed in bit positions 0-3-4.
This can be used over longer distances as a check digit or parity bit can be sent along it easily.
In practice, a digit is typically a bit and the combining operation an exclusive-or ( xor ).
Moreover, because of this property, synchronous stream ciphers are very susceptible to active attacks — if an attacker can change a digit in the ciphertext, he might be able to make predictable changes to the corresponding plaintext bit ; for example, flipping a bit in the ciphertext causes the same bit to be flipped in the plaintext.
In the standard Gray coding the least significant bit follows a repetitive pattern of 2 on, 2 off the next digit a pattern of 4 on, 4 off ; and so forth.
* There is one binary digit ( bit ) for each disk
Analogous to a bit, a ternary digit is a trit ( trinary digit ).
Each decimal digit was 6 bits, composed of an odd parity Check bit, a Flag bit, and four BCD bits for the value of the digit in the following format:
bit and is
Their burgeoning popularity may be a result of the closing of the 52nd Street burlesque joints, but curiously enough their atmosphere is almost always familial -- neighborhood saloons with a bit of epidermis.
The last exercise of Roland Claude's prescribed program for Henri is a single exercise, done in individual sets with a bit longer pause between sets.
By this time Henri's entire chest-back-lat-shoulder area is pumped-up to almost bursting point, and Claude takes time to do a bit more pectoral-front deltoid shaping work.
The head is mounted on a horizontal arm that swivels on the supporting column to position the drill bit instead of the work.
Another method of assuring a clean hole is to first drill a small pilot hole all the way through, then drill half way with the dimensional bit, turn the piece over, and finish from the other side.
When a hole is to be bored to a predetermined depth, mark the depth on the side of the stock, then run the bit down so that it is even with the mark.
The effect, needless to say, is almost terrifying, and though at times a bit obscure, the film is certainly a much-needed catharsis for the `` repressed '' movie-goer.
In fact, there is much evidence to indicate they don't care a bit about anything beyond their particular regional, ethnic and occupational limits.
Hence, if what is in question is whether in a given theology myth is or is not completely rejected, it is unimportant whether only a little bit of myth or a considerable quantity is accepted ; ;
'' Performed in New York by the original cast and I think this company is every bit as good, and perhaps better.
Jean-Marie LeClair still is remembered a bit, but Bodin De Beismortier, Corrette and Mondonville are hardly household words.
`` Your alternative is breathtaking '', he said, `` and, I'm frank in saying, a bit mad.
During this operation, each column is multiplied by the known matrix that for the 128 bit key is
Moreover, if any coefficient is a fixed power of 2, the multiplication can be replaced by bit shifting.
AAL1 is used for constant bit rate ( CBR ) services and circuit emulation.
# CBR-Constant bit rate: a Peak Cell Rate ( PCR ) is specified, which is constant.
0.529 seconds.