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Array data structure that compactly stores bits
A bit array (also known as bit map, bit set, bit string, or bit vector) is an array data structure that compactly stores bits. It can be used to implement
Bit_array
Computer science topic
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
Bitwise_operation
Data storage technology
the write performance. The array continues to operate as long as at least one drive is functioning. RAID 2 consists of bit-level striping with dedicated
RAID
Type of data structure
type of data structure is a linear array, also called a one-dimensional array. For example, an array of ten 32-bit (4-byte) integer variables, with indices
Array_(data_structure)
Unit of information
is commonly called a bit string, a bit vector, or a single-dimensional (or multi-dimensional) bit array. A group of eight bits is called one byte, but
Bit
Data structure for approximate set membership
filter is a bit array of m bits, all set to 0. It is equipped with k different hash functions, which map set elements to one of the m possible array positions
Bloom_filter
Topics referred to by the same term
Bit array or bit vector Dynamic array, allocated at run time Jagged array, an array of member arrays which can be of different lengths Parallel array
Array
Number of nonzero symbols in a string
and std::has_single_bit, taking arguments of unsigned integer types. In Java, the growable bit-array data structure BitSet has a BitSet.cardinality() method
Hamming_weight
Data structure that maps one or more adjacent bits
some previous operation. A bit field is distinguished from a bit array in that the latter is used to store a large set of bits indexed by integers and is
Bit_field
Search algorithm finding the position of a target value within a sorted array
the range of keys. Bit arrays are very fast, requiring only O ( 1 ) {\textstyle O(1)} time. The Judy1 type of Judy array handles 64-bit keys efficiently
Binary_search
Instruction for x86 processors
Reset) resets it, and BTC (Bit Test and Complement) flips it. Logical Explanation BT BT SRC, POSITION SRC Represent as bits array POSITION Represent as numeric
Bit_Test
Computer memory unit using cascaded flip-flops
pool known as a "bit array". Data was stored into the array and read back out in parallel, often as a computer word, while each bit was stored serially
Shift_register
Bit added to a binary string for error detection
Parity bits are written at the rate of one parity bit per n bits, where n is the number of disks in the array. When a read error occurs, each bit in the
Parity_bit
Associative array for storing key–value pairs
structure that implements an associative array, also called a dictionary or simply map; an associative array is an abstract data type that maps keys to
Hash_table
Data organization and storage formats
Array Associative array Bit array Bit field Bitboard Bitmap Circular buffer Control table Image Dope vector Dynamic array Gap buffer Hashed array tree
List_of_data_structures
polynomials. function crc(bit array bitString[1..len], int len) { remainderPolynomial := polynomialForm(bitString[1..n]) // First n bits of the message // A
Computation of cyclic redundancy checks
Computation_of_cyclic_redundancy_checks
Approximate string matching algorithm
Initialize the bit array R. */ R := new array[m+1] of bit, initially all 0 R[0] := 1 for i := 0; i < length(text); i += 1 do /* Update the bit array. */ for
Bitap_algorithm
Basic unit of quantum information
completely in either one of its two states, and a set of n bits (e.g. a processor register or some bit array) can only hold a single of its 2n possible states
Qubit
Array that replaces runtime computation with a simpler array indexing operation
function for better performance. The bits array, bits_set with 256 entries is constructed by giving the number of one bits set in each possible byte value
Lookup_table
File format and file compression program
Huffman table selection. Delta encoding (Δ) of Huffman-code bit lengths. Sparse bit array showing which symbols are used. Any sequence of 4 to 255 consecutive
Bzip2
Group of standard library class templates
std::array<T, N> implements a compile-time non-resizable array. std::bitset<N> implements a compile-time bit set. std::vector<T> implements an array with
Sequence_container_(C++)
Sorting algorithm
may also be used to eliminate duplicate keys, by replacing the Count array with a bit vector that stores a one for a key that is present in the input and
Counting_sort
Virtual machine that runs Java programs
capability to pack booleans into a bit array, so except for the type they perform and behave the same as byte arrays. In all other uses, the boolean type
Java_virtual_machine
Data sent by computer keyboard keypress
Broadly speaking, a scancode (or scan code) is either a number or bit array that is used by a keyboard protocol to uniquely identify a keyboard key. Keyboards
Scancode
Algorithmically modifying data below the word level
predication. Bitwise operation – Computer science topic Bit array Bit banding Bit banging Bit field Bit manipulation instruction set – Type of computer instructionsPages
Bit_manipulation
Test of a specified bit in a binary number
respectively as the value of BIT ( i , j ) {\displaystyle {\text{BIT}}(i,j)} is true or false. For a set represented as a bit array, the BIT predicate can be used
BIT_predicate
Encoded data represented in binary notation
bits can encode up to 16 values, and BCD element is invalid for a value greater than 9. Binary file – Computer file encoded in binary form Bit array –
Binary_code
First electronic stored-program computer, 1948
Williams tube from one bit to 2,048, arranged in a 64 by 32-bit array, and demonstrated that it was able to store those bits for four hours. Engineer
Manchester_Baby
Data structure which is efficient to both store in memory and query
representation which uses n + o ( n ) {\displaystyle n+o(n)} bits of storage space (the original bit array and an o ( n ) {\displaystyle o(n)} auxiliary structure)
Succinct_data_structure
Data structure in computer board games
bitboard is a specialized bit array data structure commonly used in computer systems that play board games, where each bit corresponds to a game board
Bitboard
Data types supported by the C programming language
unsigned char the basic type used for arrays suitable to store arbitrary non-bit-field objects: its lack of padding bits and trap representations, the definition
C_data_types
Operator used to vary the programming of chromosomes from one generation to the next
genetic information in a chromosome represented by a bit array. Crossover methods for bit arrays are popular and an illustrative example of genetic recombination
Crossover (evolutionary algorithm)
Crossover_(evolutionary_algorithm)
Parallel computing data layout methods
In computing, an array of structures (AoS), structure of arrays (SoA) or array of structures of arrays (AoSoA) are contrasting ways to arrange a sequence
AoS_and_SoA
Database indexing technique
internet access?), which has two values, True and False. Bitmap indexes use bit arrays (commonly called bitmaps) and answer queries by performing bitwise logical
Bitmap_index
Computing term
map of bits, a spatially mapped array of bits. Now, along with pixmap, it commonly refers to the similar concept of a spatially mapped array of pixels
Bitmap
Data structure in chess programs for game state
both array based. Most modern implementations use a more elaborate but more efficient bit array approach called bitboards which map bits of a 64-bit word
Board representation (computer chess)
Board_representation_(computer_chess)
Type of computer memory
usually arranged in a rectangular array of charge storage cells consisting of one capacitor and transistor per data bit. The figure to the right shows a
Dynamic_random-access_memory
Computer data storage partitioning standard
endian, due to a byte array being used to store the last eight bytes. Third party implementation exists (GPTTSD) Windows XP 64-bit does not normally support
GUID_Partition_Table
Type of matrix barcode
resulting mask bit is 1. Han Xin code uses Reed–Solomon error correction. Encoded data is represented as byte (8-bit) array. Data array divided into blocks
Han_Xin_code
Data whose unit can take on only two possible states
considered text data. All other data is classified as (non-text) binary. Bit array Binary protocol Bernoulli distribution Boolean data type Computer memory
Binary_data
Windows Bitmap image file format family
bytes (a 32-bit DWORD) by padding. For images with height above 1, multiple padded rows are stored consecutively, forming a Pixel Array. The total number
BMP_file_format
Topics referred to by the same term
file format used to store digital images. Bitmap or bit map may also refer to: Bit array, general bit-addressed data structures Bitmap graphics, also known
Bitmap_(disambiguation)
Abstract data type
onto the array or linked list, with few other helper operations. The following will demonstrate both implementations using pseudocode. An array can be used
Stack_(abstract_data_type)
Experimental audio transducer
significant bit. A n-bits speaker arrays will consist of 2n-1 transducers, and the mth bits of said arrays will contain 2m-1 transducers. The entire array basically
Digital_speaker
Formatted data in computer science
contains a bitmap which is N bits long where each bit indicates the presence of a non-nil pointer. This is followed by an array of pointers equal in length
Hash_array_mapped_trie
Sequence of characters, data type
string manipulating functions treating their input as raw data stream Bit array — a string of binary digits C string handling — overview of C string handling
String_(computer_science)
Error-detecting code for detecting data changes
lengths are 9 bits (CRC-8), 17 bits (CRC-16), 33 bits (CRC-32), and 65 bits (CRC-64). A CRC is called an n-bit CRC when its check value is n-bits. For a given
Cyclic_redundancy_check
Computer architecture bit width
arrays addressed using indexed addressing instructions to objects of up to 256 bytes (28 bytes) without requiring more complicated code. Other 8-bit CPUs
8-bit_computing
Data structure for approximate set membership
/ ϵ ) {\displaystyle \log _{2}(1/\epsilon )} memory accesses into the bit array, whereas a cuckoo filter requires at most 2 b {\displaystyle 2b} memory
Cuckoo_filter
Substitution box used in the Rijndael cipher
8}\oplus c_{i}} where s, b, and c are 8 bit arrays, c is 011000112, and subscripts indicate a reference to the indexed bit. Another equivalent is: s = ( b ×
Rijndael_S-box
Symbols encoded in computers to make text
variable-length UTF-16 is often stored in arrays of char16_t. Other languages also have a char type. Many, including C++, use 8-bit bytes like C. Others, such as
Character_(computing)
Family of related bitwise operations on machine words
first set and related operations can be extended to arbitrarily large bit arrays in a straightforward manner by starting at one end and proceeding until
Find_first_set
Number of bits used to represent a color
depth, also known as bit depth, is either the number of bits used to indicate the color of a single pixel, or the number of bits used for each color component
Color_depth
Way in which data is arranged and accessed in computer memory
on a 32-bit machine, a data structure containing a 16-bit value followed by a 32-bit value could have 16 bits of padding between the 16-bit value and
Data_structure_alignment
Type of computer science algorithm
form is very limited as simply having an index to a length n array requires O(log n) bits. More broadly, in-place means that the algorithm does not use
In-place_algorithm
Matrix of binary truth values
Gale–Ryser theorem. List of matrices Binatorix (a binary De Bruijn torus) Bit array Disjunct matrix Redheffer matrix Truth table Three-valued logic Irving
Logical_matrix
Any of a set of standard configurations of Redundant Arrays of Independent Disks
RAID levels comprise a basic set of RAID ("redundant array of independent disks" or "redundant array of inexpensive disks") configurations that employ the
Standard_RAID_levels
Tree data structure
priority queue, is a tree data structure which implements an associative array with m-bit integer keys. It was invented by a team led by Dutch computer scientist
Van_Emde_Boas_tree
Form of text that defines C code
multidimensional array should not be confused with an array of pointers to arrays (also known as an Iliffe vector or sometimes an array of arrays). The former
C_syntax
Type of matrix barcode
bits. The padding bits can be from 0 to 8. The logically DotCode bits array is represented as: (2 mask bits)(Data codewords 9 bits each)(Padding bits
DotCode
Structure on x86-based computers that holds information about a task
bitmap is a bit array of port access permissions; if the program has permission to access a port, a "0" is stored at the corresponding bit index, and if
Task_state_segment
Canadian technology corporation
Benny Lau, and Kwok Yuen Ho founded ATI in 1985 as Array Technology Incorporated, renamed later Array Technologies Incorporated and finally ATI Technologies
ATI_Technologies
Electronic circuit used to multiply binary numbers
simplifications in the bit array above that are not shown and are not obvious. The sequences of one complemented bit followed by noncomplemented bits are implementing
Binary_multiplier
Pseudorandom number generator
for a Mersenne Twister implementation is an array of n values of w bits each. To initialize the array, a w-bit seed value is used to supply x 0 {\displaystyle
Mersenne_Twister
Set of cryptographic hash functions
the message schedule array w has 80 64-bit words instead of 64 32-bit words, to extend the message schedule array w, the loop is from 16 to 79 instead of
SHA-2
Family of linear error-correcting codes
double-bit errors. The matrix G := ( I k − A T ) {\displaystyle \mathbf {G} :={\begin{pmatrix}{\begin{array}{c|c}I_{k}&-A^{\text{T}}\\\end{array}}\end{pmatrix}}}
Hamming_code
Type of computer memory used from 1955 to 1975
Each core stores one bit of information. At least two wires pass through each core, forming a two-dimensional X-Y-wired array of cores. When an electrical
Magnetic-core_memory
Password-based key derivation function
iterations salt: array of Bytes (16 bytes) random salt password: array of Bytes (1..72 bytes) UTF-8 encoded password Output: hash: array of Bytes (24 bytes)
Bcrypt
Computer display standard and resolution
Video Graphics Array (VGA) is a video display controller and accompanying de facto graphics standard, first introduced with the IBM PS/2 line of computers
Video_Graphics_Array
the array. In the beginning, all bits of the array are set to zero. To insert an element, all hash functions are calculated and all corresponding bits in
Approximate membership query filter
Approximate_membership_query_filter
Non-comparative lexicographical sorting algorithm
number of digits in each array element with each digit in the range of 0 to k − 1 {\displaystyle k-1} , such as 0 to 255 for an 8-bit digit. This holds when
Radix_sort
Data structure
inequality), the key at each node is compared chunk-of-bits by chunk-of-bits, where the quantity of bits in that chunk at that node is the radix r of the radix
Radix_tree
Standard for the encryption of electronic data
byte ai,j in the state array is replaced with a SubByte S(ai,j) using an 8-bit substitution box. Before round 0, the state array is simply the plaintext/input
Advanced_Encryption_Standard
Array of logic gates that are reprogrammable
Spartan FPGA from Xilinx A field-programmable gate array (FPGA) is a type of configurable integrated circuit that can be repeatedly programmed after manufacturing
Field-programmable_gate_array
Type of analog-to-digital converter
capacitors for N bits. Thus if the largest capacitance is C, then the array's total capacitance is 2C. The switched capacitor array acts as both the sample-and-hold
Successive-approximation_ADC
Computer architecture bit width
computer architecture, 64-bit integers, memory addresses, or other data units are those that are 64 bits wide. Also, 64-bit central processing units (CPU)
64-bit_computing
Reconfigurable computer design
reconfigurable datapath array (rDPA) organized as a two-dimensional array of ALUs (rDPU). The bus-width between ALU's were 32-bit in the first version of
Xputer
Command language adopted by several operating systems (OSs)
language supporting several data types, including strings, integers, bit arrays, arrays and Booleans, but not floating point numbers. Access to OpenVMS system
DIGITAL_Command_Language
Data structure for a string
applications, the space requirements of suffix arrays may still be prohibitive. Analyzed in bits, a suffix array requires O ( n log n ) {\displaystyle {\mathcal
Suffix_array
Computer display mode based on characters
represented by a dot matrix (a matrix of bits), so the character memory could be considered as a three-dimensional bit array. Display matrix (a text buffer, screen
Text_mode
Combinational digital circuit
subtraction operation, or the overflow bit resulting from a binary shift operation. Zero, which indicates all bits of Y are logic zero. Negative, which
Arithmetic_logic_unit
Topics referred to by the same term
Binary vector may mean: In computer science: a bit array or bit vector In biotechnology: a transfer DNA binary system This disambiguation page lists articles
Binary_vector
Range of mainframe computers in the 1960s and 70s
memory was always guaranteed. BOOLEAN arrays are also supported and may be used as a bit vector. INTEGER arrays may also be requested. The immediately
Burroughs_Large_Systems
Quickly accessible working storage available as part of a digital processor
memory into smaller parts (32-bit into four 8-bit ones, for instance) to which multiple data (vector, or one-dimensional array of data) can be loaded and
Processor_register
File system implementation structure
such as NTFS. The simplest form of free-space bitmap is a bit array, i.e. a block of bits. In this example, a zero would indicate a free sector, while
Free-space_bitmap
Abstract data type for storing distinct values
popular methods include arrays. In particular a subset of the integers 1..n can be implemented efficiently as an n-bit bit array, which also support very
Set_(abstract_data_type)
Block cipher
the 448 bits limit is present to ensure that every bit of every subkey depends on every bit of the key, as the last four values of the P-array don't affect
Blowfish_(cipher)
International radio telescope project
The Square Kilometre Array (SKA) is an intergovernmental international radio telescope project being built in Australia (low-frequency) and South Africa
Square_Kilometre_Array
Type of surface-mount packaging for integrated circuits
The land grid array (LGA) is a type of surface-mount packaging for integrated circuits (ICs) that is notable for having the pins on the socket (when a
Land_grid_array
Cryptographic hash function
BLAKE-224 use 32-bit words and produce digest sizes of 256 bits and 224 bits, respectively, while BLAKE-512 and BLAKE-384 use 64-bit words and produce
BLAKE_(hash_function)
1976 microprocessor
The Electronic Arrays 9002, or EA9002, was an 8-bit microprocessor released in 1976. It was designed to be easy to implement in systems with few required
Electronic_Arrays_9002
Hardware cache of a central processing unit
random-access memory (SRAM), which requires multiple transistors to store a single bit. This makes it expensive in terms of the area it takes up, and in modern
CPU_cache
Attribute of data
generally considered atomic, although it consists of a sequence of bits, while an array of integers is certainly composite. Basic data types or fundamental
Data_type
1995 edition of the Fortran programming language standard
with array result of different shape, e.g. RESHAPE(a, b); subroutines, e.g. SYSTEM_CLOCK. The procedures not already introduced are Bit inquiry Bit manipulation
Fortran_95_language_features
Hardware description and hardware verification language
1:1 onto a packed array of bits. The contents of struct data types occupy a continuous block of memory with no gaps, similar to bit fields in C and C++:
SystemVerilog
Commonly used display resolutions
(4 MB): (1280 × 1024) px × 24 bit/px ÷ 8 bit/byte ÷ 220 byte/MB = 3.75 MB SXGA+ stands for Super Extended Graphics Array Plus and is a computer display
Display_resolution_standards
Array for a particular vector space
coding theory, a standard array (or Slepian array) is a q n − k {\displaystyle q^{n-k}} by q k {\displaystyle q^{k}} array that lists all elements of
Standard_array
bitmap, nodes are placed in an array of long (64-bit) integers. A node is identified by the position (index) in that array. The index of the root node marks
Bitwise_trie_with_bitmap
Family of RISC-based computer architectures
32 bits. M (bits 0–4) is the processor mode bits. T (bit 5) is the Thumb state bit. F (bit 6) is the FIQ disable bit. I (bit 7) is the IRQ disable bit.
ARM_architecture_family
Aspect of the instruction set architecture of CPUs
memory it refers to. This can be useful when passing the address of an array element to a subroutine. It may also be a clever way of doing more calculations
Addressing_mode
BIT ARRAY
BIT ARRAY
Boy/Male
British, Dutch, English, Greek
From the Pit
Surname or Lastname
English
English : variant spelling of Burt.German : habitational name for someone from any of several places in the Rhineland named Birth or Birten.
Boy/Male
American, British, Dutch, English, Greek, Latin, Swedish
Follower of Christ; Nickname for Christopher; Frontiersman Kit Carson; Anointed; Christian
Girl/Female
Indian
Unique
Boy/Male
Dutch Latin Polish
White.
Boy/Male
English
Man from Britain.
Female
Hebrew
(בַּת-ש×ֶבַע) Variant spelling of Hebrew Bath-Sheba, BAT-SHEVA means "daughter of the oath."
Male
Russian
(Тит) Russian form of Roman Latin Titus, TIT means "fire; to burn" or "straining."
Male
Polish
Polish form of Roman Latin Vitus, WIT means "life."
Male
Scottish
Pet form of medieval Scottish Kester, KIT means "Christ-bearer." Compare with another form of Kit.
Female
Hebrew
(בַּת-×ֵל) Hebrew name BAT-EL means "daughter of God."
Female
Hungarian
Hungarian form of Greek Elisabet, ERZSÉBET means "God is my oath."
Male
English
Pet form of English Christopher, KIT means "Christ-bearer." Compare with another form of Kit.
Female
English
Short form of English Elizabeth, BET means "God is my oath."Â
Surname or Lastname
English
English : see Bigg.
Female
English
Pet form of English Katherine, KIT means "pure." Compare with masculine Kit.
Boy/Male
Hindu
Courageous, Warrior
Girl/Female
Muslim
Unique
Boy/Male
Hindu
Song
Boy/Male
Hindu
Friend
BIT ARRAY
BIT ARRAY
Boy/Male
Anglo, British, English
Stag Meadow
Girl/Female
Arabic
Learned; Intelligent
Male
Native American
Native American Sioux name TAKODA means "friend to everyone."
Boy/Male
Arabic, Muslim
Delight; Pleasure; Cheerful
Boy/Male
Czech Polish
Good grace.
Girl/Female
Australian, British, Danish, Dutch, English, Finnish, French, German, Swedish
Earth; Of the Earth; Strong; Bold
Boy/Male
Arthurian Legend
Various names for Arthur's sword.
Boy/Male
Biblical
The first born.
Boy/Male
Muslim/Islamic
A judge and follower
Boy/Male
Arabic
Knight
BIT ARRAY
BIT ARRAY
BIT ARRAY
BIT ARRAY
BIT ARRAY
v.
A part of anything, such as may be bitten off or taken into the mouth; a morsel; a bite. Hence: A small piece of anything; a little; a mite.
imp. & p. p.
of Bet
v. t.
To strike or hit with a bat or a pole; to cudgel; to beat.
inf.
of Wit
superl.
Having greatness, fullness, importance, inflation, distention, etc., whether in a good or a bad sense; as, a big heart; a big voice; big looks; to look big. As applied to looks, it indicates haughtiness or pride.
v. t.
To put into a bin; as, to bin wine.
v.
Somewhat; something, but not very great.
imp.
of Bite
n.
A morsel; a bit.
v. t.
To put a bridle upon; to put the bit in the mouth of.
v. t.
To seize with the teeth, so that they enter or nip the thing seized; to lacerate, crush, or wound with the teeth; as, to bite an apple; to bite a crust; the dog bit a man.
v. t.
To put round the bitts; as, to bitt the cable, in order to fasten it or to slacken it gradually, which is called veering away.
imp. & p. p.
of Hit
adv. & conj.
Excepting or excluding the fact that; save that; were it not that; unless; -- elliptical, for but that.