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Combinational digital circuit
In computing, an arithmetic logic unit (ALU) is a combinational digital circuit that performs arithmetic and bitwise operations on integer binary numbers
Arithmetic_logic_unit
Central computer component that executes instructions
Principal components of a CPU include the arithmetic–logic unit (ALU) that performs arithmetic and logic operations, processor registers that supply
Central_processing_unit
Basic instruction cycle in a computer
such as the arithmetic logic unit (ALU), or back to memory to fetch operands, or to the floating-point unit (FPU). The ALU performs arithmetic operations
Instruction_cycle
First arithmetic logic unit (ALU) on a single chip
The 74181 is a 4-bit slice arithmetic logic unit (ALU), implemented as a 7400 series TTL integrated circuit. Introduced by Texas Instruments in February
74181
Programmable machine that processes data
general-purpose computer has four main components: the arithmetic logic unit (ALU), the control unit, the memory, and the input and output devices (collectively
Computer
Component of a computer's CPU
and control signals that direct the operation of the other units (memory, arithmetic logic unit and input and output devices, etc.). Most computer resources
Control_unit
GPU microarchitecture by Nvidia
Fermi is the codename for a graphics processing unit (GPU) microarchitecture developed by Nvidia, released to retail in April 2010 as the successor to
Fermi_(microarchitecture)
Computer architecture bit width
or other data units are those that are 128 bits (16 octets) wide. Also, 128-bit central processing unit (CPU) and arithmetic logic unit (ALU) architectures
128-bit_computing
Early electronic digital computing device
Conventionally, the ABC would be considered the first electronic ALU (arithmetic logic unit) – which is integrated into every modern processor's design. Its
Atanasoff–Berry_computer
Calculations where numbers' precision is only limited by computer memory
system. This contrasts with the faster fixed-precision arithmetic found in most arithmetic logic unit (ALU) hardware, which typically offers between 8 and
Arbitrary-precision arithmetic
Arbitrary-precision_arithmetic
Problems with central processing unit design
are ready to enter the execution phase but there is a single ALU (Arithmetic Logic Unit). One solution to this resource hazard is to increase available
Hazard (computer architecture)
Hazard_(computer_architecture)
Part of a CPU which performs the operations instructed by the program
sequence unit (not to be confused with a CPU's main control unit), some registers, and other internal units such as an arithmetic logic unit, address
Execution_unit
19th century proposed mechanical computer
simpler mechanical calculator. The analytical engine incorporated an arithmetic logic unit (ALU), control flow in the form of conditional branching and loops
Analytical_engine
CPU that implements instruction-level parallelism within a single processor
processor), but an execution resource within a single CPU such as an arithmetic logic unit. While a superscalar CPU is typically also pipelined, superscalar
Superscalar_processor
Part of a machine instruction
Opcodes are employed in hardware devices such as arithmetic logic units (ALUs), central processing units (CPUs), and software instruction sets. In ALUs
Opcode
Register in which intermediate arithmetic and logic results of a CPU are stored
a computer's central processing unit (CPU), the accumulator is a register in which intermediate arithmetic logic unit results are stored. Without a register
Accumulator_(computing)
Part of a computer system
it using a series of simpler fixed-point arithmetic operations that run on the integer arithmetic logic unit. The software that lists the necessary series
Floating-point_unit
Type of digital logic implemented by Boolean circuits
sequential logic. For example, the part of an arithmetic logic unit, or ALU, that does mathematical calculations is constructed using combinational logic. Other
Combinational_logic
Weitek chips – the WTL1164 multiplier and WTL1165 arithmetic logic unit – to comprise a floating-point unit. "Fujitsu to take ARM into the realm of Super"
MB86900
Computer architecture bit width
in which integers and other data units are 4 bits wide. 4-bit central processing unit (CPU) and arithmetic logic unit (ALU) architectures are those that
4-bit_computing
Device performing a Boolean function
arithmetic logic units (ALUs), and computer memory, all the way up through complete microprocessors, which may contain more than 100 million logic gates
Logic_gate
Computing circuit
bit when D = 1. Adders are a part of the core of an arithmetic logic unit (ALU). The control unit decides which operations an ALU should perform (based
Adder–subtractor
Microprocessor
program for. Internally, it uses a 16-bit data arithmetic logic unit (ALU) and two 16-bit arithmetic units used mostly for addresses, and has a 16-bit external
Motorola_68000
Instructions directly executable by a computer
task such as: Load a word from memory to a CPU register Execute an arithmetic logic unit (ALU) operation on one or more registers or memory locations Jump
Machine_code
Computer architecture bit width
addresses, or other data units are those that are 45 bits wide. Also, 45-bit central processing unit (CPU) and arithmetic logic unit (ALU) architectures are
45-bit_computing
Computer architecture bit width
integers or other data units are those that are 8 bits wide (1 octet). Also, 8-bit central processing unit (CPU) and arithmetic logic unit (ALU) architectures
8-bit_computing
opposite direction, in parallel. Characteristically, the cell's arithmetic logic unit (ALU) (that is, its PE) in the early versions of GAPP was nothing
Geometric Arithmetic Parallel Processor
Geometric_Arithmetic_Parallel_Processor
Method of constructing a computer processor
Bit-slice processors (BSPs) usually include 1-, 2-, 4-, 8- or 16-bit arithmetic logic unit (ALU) and control lines (including carry or overflow signals that
Bit_slicing
Electrical component for processing data
two main components: the arithmetic logic unit (ALU), which performs all math and logical comparisons, and the control unit (CU), which manages the CPU's
Processor_(computing)
Computer architecture bit width
or other data units are those that are 16 bits (2 octets) wide. Also, 16-bit central processing unit (CPU) and arithmetic logic unit (ALU) architectures
16-bit_computing
Computer architecture bit width
addresses, or other data units are those that are 40 bits wide. Also, 40-bit central processing unit (CPU) and arithmetic logic unit (ALU) architectures are
40-bit_computing
Topics referred to by the same term
refer to: Four-Phase Systems AL1, 8-bit integrated circuit of an arithmetic logic unit and registers made by Four-Phase Systems in 1969 AL1, original designation
AL1
Reconfigurable computer design
traditional von Neumann computer architecture, to a coarse-grained "soft arithmetic logic unit (ALU)" architecture. Parallelism is achieved by configurable elements
Xputer
4-bit microprocessor introduced in 1974 by Intel
000 instructions per second. General performance, bus layout and arithmetic logic unit (ALU) were identical to the 4004. The main improvement was to use
Intel_4040
Computer architecture bit width
or other data units are those that are 18 bits (2.25 octets) wide. Also, 18-bit central processing unit (CPU) and arithmetic logic unit (ALU) architectures
18-bit_computing
Computer architecture bit width
addresses, or other data units are those that are 60 bits wide. Also, 60-bit central processing unit (CPU) and arithmetic logic unit (ALU) architectures are
60-bit_computing
central processing units (CPU) have several compute pipelines, for example: two arithmetic logic units (ALU), one floating point unit (FPU), one Streaming
Slot_(computer_architecture)
Digital circuit that produces sums from inputs
computers and other kinds of processors, adders are used in the arithmetic logic units (ALUs). They are also used in other parts of the processor, where
Adder_(electronics)
Computer architecture bit width
or other data units are those that are 256 bits (32 octets) wide. Also, 256-bit central processing unit (CPU) and arithmetic logic unit (ALU) architectures
256-bit_computing
Storage of digital data readable by computers
architecture, where the central processing unit (CPU) consists of two main parts: The control unit and the arithmetic logic unit (ALU). The former controls the flow
Computer_data_storage
transistors Operating performance: 30 MIPS Bus bandwidth 132 MB/s One arithmetic/logic unit (ALU) One shifter CPU cache RAM: 4 KB instruction cache 1 KB data
PlayStation technical specifications
PlayStation_technical_specifications
Register in a computer's CPU
the MBR, from where it goes to the specific memory location, and the arithmetic data to be processed in the ALU first goes to MBR and then to accumulator
Memory_buffer_register
Computer processor contained on an integrated-circuit chip
processing logic and control is included on a single integrated circuit (IC), or a small number of ICs. The microprocessor contains the arithmetic, logic, and
Microprocessor
Part of a computer system
fixed-point and/or integer operations. Address-generation unit Arithmetic–logic unit Floating-point unit Load–store architecture "IBM POWER8 processor core microarchitecture
Load–store_unit
Computer architecture bit width
or other data units are those that are 12 bits (1.5 octets) wide. Also, 12-bit central processing unit (CPU) and arithmetic logic unit (ALU) architectures
12-bit_computing
Family of four-bit digital ICs
the 8085-based designs they replaced. The Am2901 chip included an arithmetic logic unit (ALU) and 16 4-bit processor register slices, and was the "core"
AMD_Am2900
Computer architecture bit width
or other data units are those that are 512 bits (64 octets) wide. Also, 512-bit central processing unit (CPU) and arithmetic logic unit (ALU) architectures
512-bit_computing
CPU's internal components except the control unit
units such as arithmetic logic units (ALUs) or multipliers that perform data processing operations, registers, and buses. Along with the control unit
Datapath
Computer architecture bit width
other data units are those that are 36 bits (six six-bit characters) wide. Also, 36-bit central processing unit (CPU) and arithmetic logic unit (ALU) architectures
36-bit_computing
Computer architecture for educational purposes
that "store small amounts of data that the CPU is processing." An arithmetic logic unit (ALU) capable of adding and subtracting 8-bit 2's complement integers
Simple-As-Possible_computer
Class of digital circuits
integrated at the level of arithmetic logic units (ALUs) and bitslices, respectively. Most computers used TTL-compatible "glue logic" between larger chips
Transistor–transistor_logic
8-bit microprocessor first shipped in 1975
(ICs); the 3850 CPU which contains the arithmetic logic unit and a scratchpad, the 3851 Program Storage Unit (PSU) which contains 1 KB of program ROM
Fairchild_F8
PowerPC microprocessor
up to three instructions per cycle to an arithmetic logic unit (ALU), floating-point unit (FPU) and branch unit. To realize the short cycle times, the caches
X704
The following is a list of CMOS 4000-series digital logic integrated circuits. In 1968, the original 4000-series was introduced by RCA. Although more
List of 4000-series integrated circuits
List_of_4000-series_integrated_circuits
Nonlinear two-terminal fundamental circuit element
well-established memory units and why they can not merge the functionality of the arithmetic logic unit and of the memory unit without data transfer. Memristors
Memristor
Computer architecture bit width
addresses, or other data units are those that are 48 bits wide. Also, 48-bit central processing unit (CPU) and arithmetic logic unit (ALU) architectures are
48-bit_computing
Computer architecture bit width
integers or other data units are those that are 1 bit (1/8 octet) wide. Also, 1-bit central processing unit (CPU) and arithmetic logic unit (ALU) architectures
1-bit_computing
Topics referred to by the same term
Wiktionary, the free dictionary. ALU, Alu or alu may refer to: Arithmetic logic unit, a digital electronic circuit Alu sequence, a type of short stretch
ALU
Computer format for representing real numbers
scaling factor of 1/100. This representation allows standard integer arithmetic logic units to perform rational number calculations. Negative values are usually
Fixed-point_arithmetic
ZX Spectrum clone
Robik (Russian: Арифметико-Логическое Устройство «Робик», lit. 'Arithmetic Logic Unit «Robik»') was a Soviet and Ukrainian ZX Spectrum clone produced
Robik
Processor flag indicating whether unsigned arithmetic overflow has occurred
register used to indicate when an arithmetic carry or borrow has been generated out of the most significant arithmetic logic unit (ALU) bit position. The carry
Carry_flag
1999 book by Charles Petzold
Build a Clock! An Assemblage of Memory Automating Arithmetic The Arithmetic Logic Unit Registers and Buses CPU Control Signals Loops, Jumps, and Calls
Code: The Hidden Language of Computer Hardware and Software
Code:_The_Hidden_Language_of_Computer_Hardware_and_Software
Computer operation which manipulates invidual bits of data
- << >> & ^ | Arithmetic logic unit Bit manipulation Bitboard Bitwise operations in C Double dabble Find first set Karnaugh map Logic gate Logical operator
Bitwise_operation
CPU register containing flags
register are modified as a result of arithmetic and bit manipulation operations performed by the arithmetic logic unit (ALU). For example, a Z status bit
Status_register
System-on-a-chip designed by Apple Inc.
2024) Mac Studio (2025) Each GPU core has 16 execution units (EUs) and 128 arithmetic logic units (ALUs) Each LPDDR5 memory controller contains a 16-bit
Apple_M4
Microprocessor family
and store calculated result on the operands for the arithmetic logic unit (ALU) and the MAC unit. As the CPU is the main engine of the XC2000 microcontroller
XC2000_family
Instructions a computer can execute
strings in random-access memory. Integer arithmetic logic unit (ALU) instructions to perform the primary arithmetic operations on integers. Floating point
Computer_program
Computer architecture bit width
or other data units are those that are 24 bits (3 octets) wide. Also, 24-bit central processing unit (CPU) and arithmetic logic unit (ALU) architectures
24-bit_computing
PRODAC IV (he was the designer of the arithmetic logic unit), using destructive-readout core memory and NOR logic. When PRODAC IV was replaced by a UNIVAC
ECHO_IV
Google core for computational photography
data movement. Each PEs features 2x 16-bit arithmetic logic units (ALUs), 1x 16-bit Multiplier–accumulator unit (MAC), 10x 16-bit registers, and 10x 1-bit
Pixel_Visual_Core
Small mainframe computer series (1960s)
high-speed printer or off/on-line speed printer Disc storage unit Auxiliary Arithmetic Logic Unit (ALU) DATANET data communications equipment The series was
GE-200_series
Device used for calculations
portable electronic device used to perform calculations, ranging from basic arithmetic to complex mathematics. The first solid-state electronic calculator was
Calculator
system. The Felix C uses a hardwired control architecture. The arithmetic logic unit (ALU) supports integer operations (signed and unsigned), floating-point
Felix_C
Computer programming paradigm
the memory footprint required by specialized computational units such as arithmetic logic units. During the 1980s stream processing was explored within dataflow
Stream_processing
RISC instruction set architecture
decided to use the design for a new line of Unix workstations. The arithmetic logic unit (ALU) of the microPrism version had completed design in April 1988
DEC_PRISM
16-bit microprocessor
the Intel 8086". — (August 2020). "Reverse-engineering the 8086's Arithmetic/Logic Unit from die photos". — (November 2022). "The unusual bootstrap drivers
Intel_8086
The following is a list of 7400-series digital logic integrated circuits. In the mid-1960s, the original 7400-series integrated circuits were introduced
List of 7400-series integrated circuits
List_of_7400-series_integrated_circuits
Ghanaian student (born 2003)
2026, GhanaWeb and 3Music reported that Marhguy had built an 8-bit arithmetic logic unit (ALU) as a personal engineering project. "In Ghana, Rastafarian
Tyrone_Marhguy
Part of computer processors
Arithmetic logic unit (ALU) – a digital circuit that performs arithmetic and bitwise logical operations on integer binary numbers Floating-point unit
Address_generation_unit
Layer of hardware-level instructions or data structures
separate areas of circuitry, or "units", that perform different tasks. Commonly found units include the arithmetic logic unit (ALU) which performs instructions
Microcode
Central processing unit by Sony Computer Entertainment and Toshiba
integer arithmetic logic units (ALUs), a 128-bit load–store unit (LSU), a Branch Execution Unit (BXU), and a 32-bit VU1 floating-point unit (FPU) coprocessor
Emotion_Engine
Class of programmable logic device
three types of silicon objects: arithmetic logic units (ALUs), register files (RFs) and multiply-and-accumulate units (MACs). Both the objects and interconnects
Field-programmable object array
Field-programmable_object_array
Computer with a bit-serial architecture
(1976) Ferranti F100-L (1977) – 16-bit, but uses a bit-serial arithmetic logic unit Most of the early massive parallel processing machines were built
Serial_computer
8-bit microprocessor
8-bit arithmetic logic unit, or ALU. It was, however, incomplete by modern standards, as it included only the arithmetic operations and lacked the logic operations
Four-Phase_Systems_AL1
and store calculated result on the operands for the arithmetic logic unit (ALU) and the MAC unit. As the CPU is the main engine of the XE166 microcontroller
XE166_family
engineers of Argentina, Brazil, Colombia, Spain and Mexico. The arithmetic logic unit (ALU) was designed at the department of microelectronics of the
Don_Cuco_El_Guapo
Hardware description language (VHDL) library package for use in electronic circuit design
for VHDL. It provides arithmetic functions for vectors. Overrides of std_logic_vector are defined for signed and unsigned arithmetic. It defines numeric
Numeric_std
First computer in the Soviet Union
House of Scientists of the National Academy of Sciences of Ukraine. Arithmetic Logic Unit universal parallel action flip-flop based Number representation
MESM
System-on-a-chip designed by Apple Inc.
cores. Efficiency cores. Each GPU core has 16 execution units (EUs) and 128 arithmetic logic units (ALUs). Each LPDDR5-6400 memory controller contains a
Apple_M3
Computer memory unit using cascaded flip-flops
added were stored in two shift registers and clocked out into an arithmetic logic unit (ALU) with the result being fed back to the input of one of the
Shift_register
2020 family of multi-core microprocessors by IBM
execution slices each with one floating-point unit (FPU), arithmetic logic unit (ALU), branch predictor, load–store unit and SIMD-engine, able to be fed 128-bit
Power10
Computer hardware technology
Functional units Arithmetic logic unit (ALU) Address generation unit (AGU) Floating-point unit (FPU) Memory management unit (MMU) Load–store unit Translation
Trusted_Execution_Technology
Microprocessor developed by Sun Microsystems
provides registers to two arithmetic logic units and the load/store unit. The two ALUs can both execute arithmetic, logic and shift instructions but
UltraSPARC
Branch of elementary mathematics
Arithmetic is an elementary branch of mathematics that deals with numerical operations like addition, subtraction, multiplication, and division. In a wider
Arithmetic
core has a register file and three functional units: two integer arithmetic logic units and a load–store unit. Each of the cores ("tile") has its own L1
TILE64
electronic circuit commonly found in central processing units and especially their arithmetic logic units (ALUs). It is used to detect whether the leading bit
Leading-one_detector
Computer made by Xerox
advantage of this to accelerate performance. The Alto has a bit-slice arithmetic logic unit (ALU) based on the Texas Instruments 74181 chip, a ROM control store
Xerox_Alto
Digital circuit synchronized by clock signal
machine Mealy machine Finite-state machine Sequential logic Memory Control unit Arithmetic logic unit Processor register Application-specific integrated
Synchronous_circuit
Electronic circuits that utilize digital signals
that by using the binary system, the principles of arithmetic and logic could be joined. Digital logic as we know it was the invention of George Boole in
Digital_electronics
Type of computer processor design
capable of executing the add operation, often called ALU as in Arithmetic-Logic Unit. Finally, a control signal selects and triggers the addition operation
Transport triggered architecture
Transport_triggered_architecture
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