Arithmetic logic unit

E1019475

central processing unit component combinational circuit computer architecture component digital circuit logic device

An arithmetic logic unit (ALU) is a fundamental digital circuit in a computer processor that performs basic arithmetic and logical operations on binary data.

Try in SPARQL Jump to: Surface forms Disambiguation Statements Elicitation Referenced by

All labels observed (2)

Label	Occurrences
ALU	2
Arithmetic logic unit canonical	1

How this entity was disambiguated

This entity first appeared as the object of triple T13092006 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Arithmetic logic unit
Context triple: [Digital computer, hasComponent, Arithmetic logic unit]

A. Unidad Central Operativa
Unidad Central Operativa is a specialized investigative unit of Spain’s Guardia Civil focused on tackling serious and organized crime at the national level.
B. Ivory microprocessor
The Ivory microprocessor is a specialized Lisp processor designed to efficiently run Symbolics' advanced AI and symbolic computing systems.
C. Zilog Z8000 microprocessor
The Zilog Z8000 microprocessor is a 16-bit CPU introduced in the late 1970s, notable for its advanced architecture and use in early workstations and embedded systems.
D. Intel 8085
The Intel 8085 is an 8-bit microprocessor introduced by Intel in the mid-1970s, widely used in early personal computers, embedded systems, and educational platforms.
E. Zilog Z80
The Zilog Z80 is an 8-bit microprocessor introduced in the mid-1970s that became widely used in home computers, embedded systems, and calculators due to its enhanced instruction set and compatibility with the Intel 8080.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Arithmetic logic unit
Target entity description: An arithmetic logic unit (ALU) is a fundamental digital circuit in a computer processor that performs basic arithmetic and logical operations on binary data.

A. Unidad Central Operativa
Unidad Central Operativa is a specialized investigative unit of Spain’s Guardia Civil focused on tackling serious and organized crime at the national level.
B. Ivory microprocessor
The Ivory microprocessor is a specialized Lisp processor designed to efficiently run Symbolics' advanced AI and symbolic computing systems.
C. Zilog Z8000 microprocessor
The Zilog Z8000 microprocessor is a 16-bit CPU introduced in the late 1970s, notable for its advanced architecture and use in early workstations and embedded systems.
D. Intel 8085
The Intel 8085 is an 8-bit microprocessor introduced by Intel in the mid-1970s, widely used in early personal computers, embedded systems, and educational platforms.
E. Zilog Z80
The Zilog Z80 is an 8-bit microprocessor introduced in the mid-1970s that became widely used in home computers, embedded systems, and calculators due to its enhanced instruction set and compatibility with the Intel 8080.
F. None of above. chosen

Statements (71)

Predicate	Object
instanceOf	central processing unit component ⓘ combinational circuit ⓘ computer architecture component ⓘ digital circuit ⓘ logic device ⓘ
abbreviatedAs	ALU ⓘ linked to: Arithmetic logic unit
controlledBy	control unit ⓘ
designGoal	minimize area ⓘ minimize power consumption ⓘ minimize propagation delay ⓘ
enables	arithmetic instructions ⓘ logical instructions ⓘ
fundamentalTo	instruction execution ⓘ
hasComponent	adder circuit ⓘ carry logic ⓘ logic circuit ⓘ overflow detection circuit ⓘ status register ⓘ
hasInput	control signals ⓘ operand A ⓘ operand B ⓘ
hasOutput	result ⓘ status flags ⓘ
implementedIn	application-specific integrated circuits ⓘ field-programmable gate arrays ⓘ integrated circuits ⓘ linked to: VLSI technology
locatedIn	processor datapath ⓘ
mayPerformOperation	division ⓘ multiplication ⓘ shift left ⓘ shift right ⓘ
operatesAt	clock speed of processor ⓘ
partOf	central processing unit ⓘ linked to: CPU graphics processing unit ⓘ microcontroller ⓘ microprocessor ⓘ
performsOperation	addition ⓘ bitwise AND ⓘ bitwise NOT ⓘ bitwise OR ⓘ bitwise XOR ⓘ comparison ⓘ decrement ⓘ equality test ⓘ greater-than comparison ⓘ increment ⓘ less-than comparison ⓘ logical AND ⓘ logical NOT ⓘ logical OR ⓘ subtraction ⓘ
performsOperationOn	Boolean values ⓘ binary data ⓘ fixed-point numbers ⓘ integer data ⓘ
produces	carry flag ⓘ negative flag ⓘ overflow flag ⓘ zero flag ⓘ
supports	binary addition with carry ⓘ bitwise logical operations ⓘ two's complement arithmetic ⓘ
usedIn	CISC processors ⓘ Harvard architecture ⓘ RISC processors ⓘ digital signal processors ⓘ von Neumann architecture ⓘ
uses	adders ⓘ decoders ⓘ logic gates ⓘ multiplexers ⓘ

How these facts were elicited

Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

Digital computer → hasComponent → Arithmetic logic unit ⓘ

subject linked to: Digital Computers

Sharp LR35902 → hasComponent → ALU ⓘ

linked to: Arithmetic logic unit

Arithmetic logic unit → abbreviatedAs → ALU ⓘ