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Computer architecture bit width
In computer architecture, 40-bit integers, memory addresses, or other data units are those that are 40 bits wide. Also, 40-bit central processing unit (CPU)
40-bit_computing
Unit of information
The bit is the most basic unit of information in computing and digital communication. The name is a portmanteau of binary digit. The bit represents a logical
Bit
Computer architecture bit width
the foundation for the modern computing landscape. The 1976 Zilog Z80, one of the most popular 8-bit CPUs (though with 4-bit ALU, at least in the original)
8-bit_computing
Computer architecture bit width
computer architecture, 16-bit integers, memory addresses, or other data units are those that are 16 bits (2 octets) wide. Also, 16-bit central processing unit
16-bit_computing
Key size for symmetric encryption
of computing power in a brute-force attack, i.e., trying out each possible key in turn. A typical home computer in 2004 could brute-force a 40-bit key
40-bit_encryption
Computer architecture bit width
32-bit computing refers to computer architectures with a processor, memory, and other major components that operate on 32-bit units of data. Compared to
32-bit_computing
Unit of digital information, usually 8 bits
representable in eight or fewer bits and processor designers commonly optimize for this usage. The popularity of major commercial computing architectures has aided
Byte
Computer architecture bit width
such a processor is a 64-bit computer. From the software perspective, 64-bit computing means the use of machine code with 64-bit virtual memory addresses
64-bit_computing
Computer architecture bit width
engine-control microprocessor (Toshiba)" (PDF). Semiconductor History Museum of Japan. Retrieved 27 June 2019. DIGITAL Computing Timeline: 12-bit architecture
12-bit_computing
Computer architecture bit width
276 bytes). A 128-bit register can store 2128 (over 3.40 × 1038) different values. The range of integer values that can be stored in 128 bits depends on the
128-bit_computing
Computer architecture bit width
in some 1-bit systems. Opcodes for at least one 1-bit processor architecture were 4-bit and the address bus was 8-bit. While 1-bit computing is rarely
1-bit_computing
Computer architecture bit width
Computers designed with 45-bit words are quite rare. One 45-bit computer was the Soviet Almaz [ru] ("Diamond") computer. 60-bit computing Malashevich, B.M.; Malashevich
45-bit_computing
Computer architecture bit width
architecture, 256-bit integers, memory addresses, or other data units are those that are 256 bits (32 octets) wide. Also, 256-bit central processing
256-bit_computing
Number of bits used to represent a color
leaving 40 colors for a gray ramp, or for programmable palette entries. 8×8×4. 3 bits of R and G, 2 bits of B, the correct value can be computed from a
Color_depth
Computer architecture bit width
computer architecture, 48-bit integers, memory addresses, or other data units are those that are 48 bits wide. Also, 48-bit central processing unit (CPU)
48-bit_computing
Computer hardware technology that uses quantum mechanics
quantum computing, the qubit (quantum bit), serves a similar function as the bit in ordinary or "classical" computing. Unlike a classical bit, which can
Quantum_computing
Computer architecture bit width
4-bit computing is the use of computer architectures in which integers and other data units are 4 bits wide. 4-bit central processing unit (CPU) and arithmetic
4-bit_computing
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
Computer architecture bit width
the original on May 23, 2017. Retrieved June 18, 2015. DIGITAL Computing Timelime: 18-bit architecture Architectural Evolution in DEC’s 18b Computers, Bob
18-bit_computing
Computer architecture bit width
architecture, 31-bit integers, memory addresses, or other data units are those that are 31 bits wide. In 1983, IBM introduced 31-bit addressing in the
31-bit_computing
Base memory unit handled by a computer
In computing, a word is a fixed-sized datum handled as the natural or historical unit of data by the instruction set or the hardware of a processor. The
Word_(computer_architecture)
Computer architecture bit width
computer architecture, 24-bit integers, memory addresses, or other data units are those that are 24 bits (3 octets) wide. Also, 24-bit central processing unit
24-bit_computing
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
Computer architecture bit width
computer architecture, 60-bit integers, memory addresses, or other data units are those that are 60 bits wide. Also, 60-bit central processing unit (CPU)
60-bit_computing
Method of constructing a computer processor
expensive, ALUs was seen as a way to increase computing power in a cost-effective manner. While 32-bit microprocessors were being discussed at the time
Bit_slicing
Information transmission rate expressed in bits per second
telecommunications and 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
Bit_rate
Unit of measure for digital data
of information is any unit of measure of digital data size. In digital computing, a unit of information is used to describe the capacity of a digital data
Units_of_information
Key size for symmetric encryption
In computing, 56-bit encryption refers to a key size of fifty-six bits, or seven bytes, for symmetric encryption. While stronger than 40-bit encryption
56-bit_encryption
Floating-point number format by Microsoft
version was offered with the original 32-bit format or an optional expanded 40-bit (5-byte) format. The 40-bit format was used by most home computers of
Microsoft_Binary_Format
Early computer built by the RAND Corporation, in service 1953-1966
only 40 tubes (256 words) of memory. Two instructions were stored in every word in 20-bit subwords consisting of an 8-bit instruction and a 12-bit address
JOHNNIAC
MIPS microprocessor
The R4000 uses a 64-bit virtual address, but only implements 40 of the 64 bits, allowing 1 TB of virtual memory; the remaining bits are checked to ensure
R4000
Symbols encoded in computers to make text
rendering support, you may see question marks, boxes, or other symbols. In computing and telecommunications, a character is the encoded representation of a
Character_(computing)
Computer approximation for real numbers
In computing, floating-point arithmetic (FP) is arithmetic on subsets of real numbers formed by a significand (a signed sequence of a fixed number of
Floating-point_arithmetic
32-bit RISC-like computing architecture
The Clipper architecture is a 32-bit reduced instruction set computer (RISC)-like central processing unit (CPU) instruction set architecture designed
Clipper_architecture
Intel486 SX Used in low-cost entry to 486 CPU desktop computing, as well as extensively in low cost mobile computing Upgradable with the Intel OverDrive processor
List_of_Intel_processors
1980s 8-bit British home computer
World Show". BYTE. p. 40. Retrieved 19 October 2013. "Camputers Lynx Games at the Centre for Computing History". Centre for Computing History. Retrieved
Camputers_Lynx
Computer architecture bit width
In computer architecture, 26-bit integers, memory addresses, or other data units are those that are 26 bits wide, and thus can represent unsigned values
26-bit_computing
Programmable machine that processes data
of the analytical engine's computing unit (the mill) in 1888. He gave a successful demonstration of its use in computing tables in 1906. In his work
Computer
which computed all prime numbers up to that limit. Computing – Manufacturing: An estimated 6×1018 transistors were produced worldwide in 2008. Computing –
Orders_of_magnitude_(numbers)
Floating-point number formats
floating-point formats: A 32-bit "standard precision" format and a 40-bit "extended precision" format. Standard-precision format contains a 24-bit two's complement
Extended_precision
Electronic computer from 1958
It was the first computer to have a microprogrammed control unit and a bit-slice hardware architecture. First calculations were performed on the incomplete
EDSAC_2
American YouTuber
his general videos about computing were attracting more subscribers. In 2015, he renamed his primary channel to "The 8-Bit Guy" and focused on retrocomputing
The_8-Bit_Guy
The history of computing extends beyond the history of computing hardware and modern computing technology including earlier methods that relied on pen
History_of_computing
64-bit extension of x86 architecture
an evolutionary way to add 64-bit computing capabilities to the existing x86 architecture while supporting legacy 32-bit x86 code, as opposed to Intel's
X86-64
Use of a GPU for computations typically assigned to CPUs
supercomputing it is well-known that scientific computing drives the largest concentrations of Computing power in history, listed in the TOP500: the majority
General-purpose computing on graphics processing units
General-purpose_computing_on_graphics_processing_units
GPU microarchitecture designed by Nvidia
Tensor Cores for AI compute and performing floating-point calculations. In the data center, Blackwell adds native support for sub-8-bit data types, including
Blackwell_(microarchitecture)
American fabless semiconductor company
Ampere Computing LLC is an American fabless semiconductor company that designs ARM-based central processing units (CPUs) with high core counts for use
Ampere_Computing
American programmer
career as a technical editor and programmer for Atari 8-bit computer magazine ANALOG Computing, where he wrote video games and utilities as type-in programs
Tom_Hudson_(programmer)
Computer systems capable of one exaFLOPS
Exascale computing refers to computing systems capable of calculating at least 1018 IEEE 754 double precision (64-bit) operations (multiplications and/or
Exascale_computing
Type of memory used on processors that require high transfer rate memory
a width of 4096 bits. In comparison, the bus width of GDDR memories is 32 bits, with 16 channels for a graphics card with a 512‑bit memory interface
High_Bandwidth_Memory
1979–1991 home computer series
Electronics Show; Creative Computing presents the Short Circuit Awards". Creative Computing. Vol. 9, no. 3. Ahl Computing. p. 50. ISSN 0097-8140. Archived
Atari_8-bit_computers
128-bit computer number format
In computing, quadruple precision (or quad precision) is a binary floating-point–based computer number format that occupies 16 bytes (128 bits) with precision
Quadruple-precision floating-point format
Quadruple-precision_floating-point_format
Family of related bitwise operations on machine words
is a bit operation that returns the index or position of the least significant 'one' bit in its argument, counting from the least significant bit. A related
Find_first_set
Floating-point values coded as few bits
In computing, minifloats are floating-point values represented with very few bits. This reduced precision makes them ill-suited for general-purpose numerical
Minifloat
Activity involving calculations or computing machinery
Computing is any goal-oriented activity that requires, benefits from, or creates computing machinery. It includes the study and experimentation of algorithmic
Computing
8-bit home computer introduced in 1982
between 30% and 40% share of the US market and two million units sold per year, outselling IBM PC compatibles, the Apple II, and Atari 8-bit computers. Sam
Commodore_64
Microprocessor design by Intel
processors for general-purpose computing. Mercury Computer Systems used the i860 in their multicomputer. From 2 to 360 compute nodes would reside in a circuit
Intel_i860
List of 8-bit computer hardware palettes List of 16-bit computer hardware palettes List of video game console palettes Palette (computing) Indexed color
List_of_color_palettes
GPU microarchitecture by Nvidia
tracing and shading and compute Shader Execution Reordering (SER) Nvidia video encoder/decoder (NVENC/NVDEC) with 8K 10-bit 60FPS AV1 fixed function
Ada Lovelace (microarchitecture)
Ada_Lovelace_(microarchitecture)
First electronic computer to be built at the Institute for Advanced Study
ISBN 9780821826768. "Automatic Computing Machinery: News - Institute for Advanced Study". Mathematics of Computation. 6 (40): 245–246. Oct 1952. doi:10
IAS_machine
Family of instruction set architectures
Intel and the whole x86 ecosystem needed 64-bit memory addressing if x86 was to survive the 64-bit computing era, as workstation and desktop software applications
X86
Four-bit unit of binary data
In computing, a nibble, also spelled nybble to match byte, is a unit of information consisting of four bits, equivalent to one half of a byte or octet
Nibble
Series of GPUs by Nvidia
50 series of consumer graphics cards is the successor of Nvidia's GeForce 40 series. Announced at CES 2025, it debuted with the release of the RTX 5070
GeForce_RTX_50_series
Decimal representation of real numbers in computing
the 8 bits following the sign bit (the 2 bits mentioned plus 6 bits of "exponent continuation field"), and the significand is the remaining 23 bits, with
Decimal_floating_point
36-bit computer by Digital (1966–1983)
as opposed to its modern definition of "eight bits". The PDP-10 was found in many university computing facilities and research labs during the 1970s,
PDP-10
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
Maximum rate of data transfer
In computing, bandwidth is the maximum rate of data transfer across a given path. Bandwidth may be characterized as network bandwidth, data bandwidth
Bandwidth_(computing)
quantum computing. The paper was submitted in June 1979 and published in April 1980. Yuri Manin briefly motivates the idea of quantum computing. Tommaso
Timeline of quantum computing and communication
Timeline_of_quantum_computing_and_communication
Part of a machine instruction
In computing, an opcode (abbreviated from operation code) is an enumerated value that specifies the operation to be performed. Opcodes are employed in
Opcode
Processor executing one instruction in minimal clock cycles
computer (RISC) chips. Explicitly parallel instruction computing No instruction set computing One-instruction set computer Very long instruction word
Reduced instruction set computer
Reduced_instruction_set_computer
Series of low-cost single-board computers
entry point for computing at a price of just $5. In February 2016, the Raspberry Pi 3 marked another major milestone by integrating a 64-bit processor, Wi-Fi
Raspberry_Pi
256-bit computer number format
In computing, octuple precision is a binary floating-point-based computer number format that occupies 32 bytes (256 bits) in computer memory. This 256-bit
Octuple-precision floating-point format
Octuple-precision_floating-point_format
Family of 64-bit Intel microprocessors
eventually to supplant reduced instruction set computing (RISC) and complex instruction set computing (CISC) architectures for all general-purpose applications
Itanium
Class of microcomputers
was a standard for a home computing architecture that was intended and hoped to become a universal platform for home computing. It was conceived, engineered
Home_computer
Gaming generation from 1993 to 2006
"Nintendo releases the Nintendo 64". The Centre for Computing History. Centre for Computing History. Retrieved October 27, 2025. "At the Deadline"
Fifth generation of video game consoles
Fifth_generation_of_video_game_consoles
Self-correcting computer data storage
Correction of Silent Data Corruption for Large-Scale High-Performance Computing Single-Bit Errors: A Memory Module Supplier's perspective on cause, impact and
ECC_memory
University Computing History Computer Histories – An introductory course on the history of computing Revolution – The First 2000 Years Of Computing, Computer
History_of_computing_hardware
1979 computer spreadsheet application
system, VisiCalc was ported to numerous platforms, both 8-bit and some of the early 16-bit systems. To do this, the company developed porting platforms
VisiCalc
GPU microarchitecture by AMD
the use of six MCDs while the RX 7900 XT has a 320-bit bus due to its five MCDs. RDNA 3's Compute Units (CUs) for graphics processing are organized in
RDNA_3
Feature of GPUs by Nvidia
in Nvidia graphics cards that performs video encoding, offloading this compute-intensive task from the CPU to a dedicated part of the GPU. It was introduced
NVENC
Computer processor designed by David M. Harland
are replaced by 40-bit object IDs pointing to a section of memory allocated by Objekt. The most significant bit (MSB) of the 40-bit pointer was set to
Rekursiv
Multi-core microprocessor microarchitecture
Processor for Scientific Computing". ACM Computing Frontiers. Retrieved April 6, 2017. "SCOP3: A Rough Guide to Scientific Computing On the PlayStation 3"
Cell_(processor)
First computer in Denmark, 1957
drum (spinning at 3000 rpm). A full word stored 40-bit numbers in two's-complement form, or two 20-bit instructions. In addition to two accumulators, the
DASK
Paper-based recording medium
widely used for data processing, the control of automated machines, and computing. Early applications included controlling weaving looms and recording census
Punched_card
1981 video game
computer ports were commercially successful in North America and Europe. II Computing listed Zaxxon fourth on its list of top Apple II games as of late 1985
Zaxxon
Type of microprocessor developed in India
Swadeshi Compute Designs" (PDF). Centre for Development of Advanced Computing. Retrieved 4 September 2024. "DHRUV64: India's First 1.0 GHz, 64-bit dual-core
VEGA_Microprocessors
IEEE standard for floating-point arithmetic
business and scientific computing industry in the 1960s and 1970s. IBM used a hexadecimal floating-point format with seven bits always used for the exponent
IEEE_754
Cryptography secured against quantum computers
quantum computing". phys.org. Heger, Monica (2009-01-01). "Cryptographers Take On Quantum Computers". IEEE Spectrum. "Q&A With Post-Quantum Computing Cryptography
Post-quantum_cryptography
Family of Arm-based CPUs designed by Amazon Web Services
Graviton is a family of 64-bit Arm-based central processing units designed by Amazon Web Services (AWS) for use in its cloud computing infrastructure. The processors
AWS_Graviton
Series of 16-bit minicomputers
minicomputer for general-purpose computing, such as timesharing, scientific, educational, medical, government or business computing. Another common application
PDP-11
Microsoft operating system family
Windows NT support 64-bit computing, with a 64-bit kernel and 64-bit memory addressing while retaining compatibility with 32-bit software. Windows NT is
Windows_NT
Set of computers configured in a distributed computing system
and scheduled by software. The newest manifestation of cluster computing is cloud computing. The components of a cluster are usually connected to each other
Computer_cluster
Group of 64-bit ARM processor cores
of 64-bit ARM processor cores licensed by Arm Holdings. The cores are intended for datacenter, edge computing, and high-performance computing use. The
ARM_Neoverse
Range of mainframe computers in the 1960s and 70s
in computing (Elliott Brothers was founded before Burroughs, but did not make computing devices in the 19th century). By the late 1950s its computing equipment
Burroughs_Large_Systems
IBM computer family (1964–1977)
(1966) was a specialized model, designed for scientific computing and for real-time computing and process control, featuring some additional instructions
IBM_System/360
Specialized electronic circuit that accelerates graphics
generalized computing devices. Parallel GPUs are making computational inroads against the CPU, and a subfield of research, dubbed GPU computing or GPGPU
Graphics_processing_unit
events in the history of computing from 1950 to 1979. For narratives explaining the overall developments, see the history of computing. Information revolution
Timeline of computing 1950–1979
Timeline_of_computing_1950–1979
Form of computer memory
(single-chip) 16-bit SP95 SRAM chip for their System/360 Model 95 computer, and Toshiba used bipolar DRAM memory cells for its 180-bit Toscal BC-1411 electronic
Random-access_memory
Feature in Nvidia graphics cards
in Nvidia graphics cards that performs video decoding, offloading this compute-intensive task from the CPU. NVDEC is a successor of PureVideo and is available
NVDEC
Order of bytes in a computer word
In computing, endianness is the order in which bytes within a word data type are transmitted over a data communication medium or addressed in computer
Endianness
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