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Topics referred to by the same term
bit specification may mean: Computer hardware or software capabilities or design features expressed in terms of bit counts. Higher bit specification (e
Bit_specification
Technical standard in computing
changed the raw bit rates slightly to bring them in line with other USB specifications, where the nominal bit rate matches the raw bit rate. USB4 also
USB4
Type of document
Multiboot specification Real-time specification for Java Single UNIX Specification Bit specification (disambiguation) Design specification Diagnostic
Functional_specification
Number of bits used to represent a color
accomplished with a color encoding specification which assigns a digital code value to a location in a color space. The number of bits of resolved intensity in
Color_depth
Algorithmically modifying data below the word level
redirect targets BIT predicate Bit specification (disambiguation) Bit twiddler (disambiguation) Hacker's Delight – book on fast bit-level and low-level
Bit_manipulation
Family of lossless-compression image file formats
4 sBIT Significant bits. "PNG (Portable Network Graphics) Specification \ Version 1.0". w3.org. Retrieved 30 May 2022. 4.2.6. sBIT Significant bits, 13
PNG
Virtual machine that runs Java programs
The JVM is detailed by a specification that formally describes what is required in a JVM implementation. Having a specification ensures interoperability
Java_virtual_machine
RISC instruction set architecture by AIM alliance
Versions of the design exist in both 32-bit and 64-bit implementations. Starting with the basic POWER specification, the PowerPC added: Support for operation
PowerPC
Peer-to-peer file sharing protocol
BitTorrent, Inc. released the BitTorrent v2 protocol specification. BitTorrent v2 is intended to work seamlessly with previous versions of the BitTorrent
BitTorrent
64-bit extension of x86 architecture
backward-incompatible with IA-32, the 32-bit extension of the x86 architecture. AMD originally announced AMD64 in 1999 with a full specification available in August 2000
X86-64
Encoding for a sequence of byte values using 64 printable characters
binary-to-text encoding that uses 64 printable characters to represent each 6-bit segment of a sequence of byte values. As for all binary-to-text encodings
Base64
Technical specification for firmware architecture
The latest UEFI specification, version 2.11, was published in December 2024. UEFI supports processor architectures that are 32-bit or higher. However
UEFI
Standards for operating systems for using the UNIX trademark
The Single UNIX Specification (SUS) is a standard for computer operating systems, compliance with which is required to qualify for using the "UNIX" trademark
Single_UNIX_Specification
Local computer bus for attaching hardware devices
needed] the PCI specification includes optional 64-bit support. This is provided via an extended connector which provides the 64-bit bus extensions AD[63:32]
Peripheral Component Interconnect
Peripheral_Component_Interconnect
Computer operation which manipulates invidual bits of data
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
Digital audiovisual data interface
The HDCP repeater bit controls the authentication and switching/distribution of an HDMI signal. According to HDCP Specification 1.2 (beginning with
HDMI
Serial communication bus
design has a 7-bit address space, with a rarely used 10-bit extension. Some vendors report 8-bit and 11-bit addresses instead, as the lowest bit in the first
I2C
Error-detecting code for detecting data changes
has a length of n + 1; its encoding requires n + 1 bits. Note that most polynomial specifications either drop the MSb or LSb, since they are always 1
Cyclic_redundancy_check
2019-06-26. The Zorro II bus use 4 clocks per 16-Bit of data transferred. See the Zorro III technical specification Archived 2012-07-16 at the Wayback Machine
List_of_interface_bit_rates
Document file format developed by Microsoft
substitution character. Until RTF specification version 1.5 release in 1997, RTF only handled 7-bit characters directly and 8-bit characters encoded as hexadecimal
Rich_Text_Format
Data types supported by the C programming language
signed _BitInt(1) which then has the possible values 0 and -1, removing the special case for unsigned _BitInt(1). The C language specification includes
C_data_types
Standard for serial communication between devices without host computer
CAN specification. The latest is CAN 2.0, published in 1991. This specification has two parts. Part A is for the standard format with an 11-bit identifier
CAN_bus
Image compression file format
Format (QOI) is a specification for lossless image compression of 24-bit (8 bits per color RGB) or 32-bit (8 bits per color with 8-bit alpha channel RGBA)
QOI_(image_format)
Avionics data bus standard
Data in blue-green and the Parity bit in navy blue. Label guidelines are provided as part of the ARINC 429 specification, for various equipment types. Each
ARINC_429
Computer network protocol
CANopen is a communication protocol stack and device profile specification for embedded systems used in automation. In terms of the OSI model, CANopen
CANopen
Section of computer memory in PC compatibles
terabytes) but limited by the specification to 4 GB. (4 GB is the address range of the 80386 and the 80486, the only 32-bit Intel x86 CPUs that existed
Extended_memory
Computer expansion bus standard
PCI-SIG announced the development of PCI Express 7.0 specification. It will deliver 128 GT/s raw bit rate and up to 242 GB/s per direction in x16 configuration
PCI_Express
Differentiating positive and negative zero
unsigned. In a 1+7-bit sign-and-magnitude representation for integers, negative zero is represented by the bit string 1000 0000. In an 8-bit ones' complement
Signed_zero
Standard for computer data connections
The USB 1.1 specification replaces USB 1.0. The USB 2.0 specification is backward-compatible with USB 1.0/1.1. The USB 3.2 specification replaces USB
USB
Computer architecture bit width
128-bit addressing or 128-bit integer arithmetic. The RISC-V ISA specification from 2016 includes a reservation for a 128-bit version of the architecture
128-bit_computing
File format standard for storing audio on PCs
such as the sample encoding, number of bits per channel, number of channels, and sample rate. The WAV specification includes some optional features. The
WAV
Flash memory card format
Association, a non-profit organization responsible for developing the SD specifications and promoting the format. As of 2023, the SDA includes approximately
SD_card
Computer architecture bit width
bits for virtual memory and, for any given processor, from 32 to 56 bits for physical memory. The DEC Alpha specification requires minimum of 43 bits
64-bit_computing
Floating-point values coded as few bits
Unsigned 11-bit floating-point numbers". Khronos Data Format Specification v1.2 rev 1. Khronos Group. Retrieved 10 August 2023. "OCP 8-bit Floating Point
Minifloat
Unit of digital information, usually 8 bits
INTERNET PROGRAM PROTOCOL SPECIFICATION. IETF. p. 43. doi:10.17487/RFC0791. RFC 791. Retrieved 28 August 2020. octet An eight bit byte. Buchholz, Werner
Byte
Color used in designing web pages
01 specification, ratified in 1999, as follows (defined case-insensitive): These 16 were labeled as sRGB and included in the HTML 3.0 specification, which
Web_colors
Raster graphics file format
representation of grayscale data. The pixel depth is 8 bits for images of this type. Color map specification (field 4) has three subfields: First entry index
Truevision_TGA
32-bit version of x86 architecture
exclusively to implementing CPUs based on the 64-bit variant of x86, x86-64. x86-64, by specification, offers legacy operating modes that operate on the
IA-32
Information transmission rate expressed in bits per second
computing, bit rate (bitrate or as a variable R) is the number of bits that are conveyed or processed per unit of time. The bit rate is expressed as bits per
Bit_rate
Type of file format
portmanteau of parity archive, and formally known as Parity Volume Set Specification) is an erasure code system that produces par files for checksum verification
Parchive
a list of the IP protocol numbers found in the 8-bit Protocol field of the IPv4 header and the 8-bit Next Header field of the IPv6 header. It is an identifier
List_of_IP_protocol_numbers
RISC instruction set architecture
"Oracle SPARC Architecture 2015" specification an "implementation may contain from 72 to 640 general-purpose 64-bit" registers. At any point, only 32
SPARC
Family of archive file formats
the PKWARE specifications at their own pace. The .ZIP file format specification is formally named "APPNOTE - .ZIP File Format Specification" and it is
ZIP_(file_format)
Digital display interface
standard. The DisplayPort 1.2 standard defines only a single specification for High Bit Rate cable assemblies, which is used for both HBR and HBR2 speeds
DisplayPort
Feature of the HDMI cable
The HDCP repeater bit (Bit Field 0 in "Table 4.4 RxCaps Register Bit Field Definitions" p58 of the HDCP Specification rev2.3) is a part of the High-bandwidth
HDCP_repeater_bit
Fourth version of the Internet Protocol
is the first version of the Internet Protocol (IP) as a standalone specification. It is one of the core protocols of standards-based internetworking
IPv4
Variable-width encoding of Unicode, using one or two 16-bit code units
UTF-16 (16-bit Unicode Transformation Format) is a character encoding that supports all 1,112,064 valid code points of Unicode. The encoding is variable-length
UTF-16
Series of image file formats
format which uses 64-bit offsets and supports much larger files (up to 18 exabytes in size). The BigTIFF file format specification was implemented in 2007
TIFF
File format for image files
present. Version 1.0 of the JNG specification was released on January 31, 2001 (initially as part of the MNG specification). Usually, all the applications
JPEG_Network_Graphics
Communication bus specification
bus specification "between equipments within a vehicle or a chassis" of Renesas Electronics. It defines OSI model layer 1 and layer 2 specification. IEBus
IEBus
Computer instruction set architecture
16-bit instructions and big-endian byte ordering. New in version 3 of the Power ISA is that implementations need not implement the entire specification to
Power_ISA
Family of instruction set architectures
X2APIC Some unused operating system mode bits 16-bit and 32-bit Startup IPI (SIPI) The draft specification received multiple updates, reaching version
X86
Hardware description and hardware verification language
combinational and sequential logic blocks. When operands lack explicit bit specifications, simulators and synthesis tools may infer widths based on context
SystemVerilog
Standard for transmitting digital video to a display
either represents two 24-bit pixels or one pixel of up to 48-bit color depth. The specification document allows the data and the clock to not be aligned.
Digital_Visual_Interface
Detachable tool tips used for driving screws
standardized bit interfaces. Early bit holders were typically proprietary, but manufacturers and industrial users began to push for common specifications. In 1975
Screwdriver_bit
Single-board computer designed by the BBC
website BBC micro:bit technical specifications BBC micro:bit edge pinout hands-on with BBC's Micro Bit (original prototype) BBC micro:bit at Microsoft Research
Micro_Bit
Serial bus specification
I3C or I³C, also known as SenseWire, is a specification to enable communication between microchips by defining the electrical connection between the chips
I3C_(bus)
Software interface
controllers using either the UHCI specification or OHCI specification, both of which are 32-bit only specifications. EHCI has added power management features
Host controller interface (USB, Firewire)
Host_controller_interface_(USB,_Firewire)
Data interface description language
means that the FooHistory message specification may have additional fields in future versions of the specification; systems compliant with one version
ASN.1
Standard file format for executables, object code, shared libraries, and core dumps
shared libraries, device drivers, and core dumps. First published in the specification for the application binary interface (ABI) of the Unix operating system
Executable and Linkable Format
Executable_and_Linkable_Format
Computer bus architecture
Microcontroller Bus Architecture (AMBA) is an open-standard, on-chip interconnect specification for the connection and management of functional blocks in system-on-a-chip
Advanced Microcontroller Bus Architecture
Advanced_Microcontroller_Bus_Architecture
Ultra Accelerator Link
Ultra Accelerator Link (UALink) is an open specification for a die-to-die interconnect and serial bus between AI accelerators. It is co-developed by Alibaba
UALink
Unique identifier assigned to network interfaces
to) the second-least-significant bit of the first octet of the address. This bit is also referred to as the U/L bit, short for Universal/Local, which
MAC_address
Personal computer by Commodore
rethought as a high-end workstation. The new Motorola 32-bit 68030 CPU, 68882 math co-processor, and 32-bit system memory increase the integer processing speed
Amiga_3000
Key derivation function
2015. Kaliski, Burt (2000). "PKCS #5: Password-Based Cryptography Specification, Version 2.0". tools.ietf.org. doi:10.17487/RFC2898. RFC 2898. Retrieved
PBKDF2
Wireless personal area network technology
Rate/Enhanced Data Rate (BR/EDR) and BLE can coexist. The original specification was developed by Nokia in 2006 under the name Wibree, which was integrated
Bluetooth_Low_Energy
Format for digital video content
documented by a detailed technical specification document known as a video coding specification. Some such specifications are written and approved by standardization
Video_coding_format
Internal expansion bus in early PC compatibles
and Kaby Lake Intel processors; per its official specifications, it can be accessed within the 32-bit Windows 7 installation. DFI also released a motherboard
Industry Standard Architecture
Industry_Standard_Architecture
DOS specification
the missing "true DPMI" bits implemented in Windows. In fact, "true DPMI" never became part of the official DPMI specification, and Windows likewise never
DOS_Protected_Mode_Interface
Instruction set extension by Intel
the previous one. In the initial revisions of the AVX10 specification, the support for 512-bit vectors was made optional, which would allow Intel to support
AVX-512
Executable file format
Portable Executable (PE) is a file format for native executable code on 32-bit and 64-bit Windows operating systems, as well as in UEFI environments. It is used
Portable_Executable
Computer feature
microcode specification, referred to as Beta. The main visionary behind ASD memory was John McClintock. Later the 3-bit memory tag was increased to a 4-bit specification
Burroughs large systems descriptors
Burroughs_large_systems_descriptors
Computer data storage partitioning standard
Partition Table is specified in chapter 5 of the UEFI 2.11 specification. GPT uses 64 bits for logical block addresses, allowing a maximum disk size of
GUID_Partition_Table
Expansion card standard for laptop computers
The CardBus PC Card was introduced as a 32-bit version of the original PC Card, based on the PCI specification. CardBus slots are backward compatible, but
PC_Card
Standard for computer networking over a cable television system
Data Over Cable Service Interface Specification (DOCSIS) is an international telecommunications standard that permits the addition of high-bandwidth data
DOCSIS
Computer architecture bit width
architecture, 512-bit integers, memory addresses, or other data units are those that are 512 bits (64 octets) wide. Also, 512-bit central processing
512-bit_computing
Password-based key derivation function
original specification of Blowfish, "The 448 [bit] limit on the key size ensures that the [sic] every bit of every subkey depends on every bit of the key
Bcrypt
Computer approximation for real numbers
floating-point specification does not define a 16-bit format, ILM created the "half" format. Half values have 1 sign bit, 5 exponent bits, and 10 mantissa bits. "Technical
Floating-point_arithmetic
Universal Chiplet Interconnect express
Universal Chiplet Interconnect Express (UCIe) is an open specification for a die-to-die interconnect and serial bus between chiplets. It is co-developed
UCIe
Open-source CPU instruction set architecture
instruction set specification defines 32-bit and 64-bit address space variants. The specification includes a description of a 128-bit flat address space
RISC-V
24-pin USB connector system
Apple Inc. and Microsoft among others also contributed. The Type‑C Specification 1.0 was published by the USB Implementers Forum (USB-IF) on August 11
USB-C
Number of bits of information recorded for each digital audio sample
(PCM), bit depth is the number of bits of information in each sample, and it directly corresponds to the resolution of each sample. Examples of bit depth
Audio_bit_depth
Serial communication protocol for two-channel digital audio
"I²S Specification" (PDF). Philips Semiconductors. June 5, 1996. Archived from the original (PDF) on January 2, 2007. "UM11732 I2S bus specification" (PDF)
I2S
128-bit number used to identify information in computer systems
than a rigid bit-layout for optional sub-millisecond timestamp precision, counters, and randomness. The specification allows the 48-bit Unix timestamp
Universally_unique_identifier
The PlayStation technical specifications describe the various components of the original PlayStation video game console. LSI CoreWare CW33000-based core
PlayStation technical specifications
PlayStation_technical_specifications
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
ASCII-compatible variable-width encoding of Unicode
Unicode Standard, the name is derived from Unicode Transformation Format – 8-bit. As of 2026, almost every webpage (99.1%) is transmitted as UTF-8. UTF-8
UTF-8
Numbering format in Nvidia hardware
but a specification for reduced-precision FP32 multiply–accumulate operations. FP32 inputs are rounded to TF32, multiplied to produce a 21-bit product
TensorFloat-32
genre out of a fixed list. Genre definitions 0-79 follow the ID3 tag specification of 1999. More genres have been successively introduced in later Winamp
List_of_ID3v1_genres
Interpreted programming language
microprocessor. It was initially used on the COSMAC VIP and Telmac 1800, which were 8-bit microcomputers made in the mid-1970s. CHIP-8 was designed to use less memory
CHIP-8
Computer hardware standard
SGPIO specification. This section describes how each of these bits are interpreted according to the IBPI specification. Only the activity bit is interpreted
International Blinking Pattern Interpretation
International_Blinking_Pattern_Interpretation
Synchronous serial communication interface
the original specification has a LSBFE ("LSB-First Enable") to control whether data is transferred least (LSB) or most significant bit (MSB) first. On
Serial_Peripheral_Interface
64-bit computer number format
FP64 or float64) is a floating-point number format, usually occupying 64 bits in computer memory; it represents a wide range of numeric values by using
Double-precision floating-point format
Double-precision_floating-point_format
Type of computer memory
follows: The number of chip ID bits remains at three bits, allowing up to eight stacked chips (3 → 3). A third bank group bit (BG2) was added, allowing up
DDR5_SDRAM
Principal protocol used for transmission of datagrams across an IP network
(IPv6) Specification. Internet Engineering Task Force. doi:10.17487/RFC8200. STD 86. RFC 8200. Internet Standard 86. Obsoletes RFC 2460. "Compute 16-bit Ones'
User_Datagram_Protocol
Logical subdivision of an IP network
broadcast address. The IPv6 address specification 2001:db8::/32 is a large address block with 296 addresses, having a 32-bit routing prefix. For IPv4, a network
Subnet
Timecode encoded as an audio signal
as defined in SMPTE 12M specification. The audio signal is commonly recorded on a VTR track or other storage media. The bits are encoded using the biphase
Linear_timecode
Computer architecture bit width
architecture, 36-bit integers, memory addresses, or other data units are those that are 36 bits (six six-bit characters) wide. Also, 36-bit central processing
36-bit_computing
16-bit computer number format
Retrieved 2015-05-05. Garrard, Andrew. "10.1. 16-bit floating-point numbers". Khronos Data Format Specification v1.2 rev 1. Khronos. Retrieved 2023-08-05.
Half-precision floating-point format
Half-precision_floating-point_format
US military standard for 16-bit computer
it. However, no finalized specification was ever issued for the 1750B, as military and industry attention shifted to 32-bit architectural alternatives
MIL-STD-1750A
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BIT SPECIFICATION
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