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.
All labels observed (1)
| Label | Occurrences |
|---|---|
| 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 NERFINISHED ⓘ |
| 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 NERFINISHED ⓘ |
| locatedIn | processor datapath ⓘ |
| mayPerformOperation |
division
ⓘ
multiplication ⓘ shift left ⓘ shift right ⓘ |
| operatesAt | clock speed of processor ⓘ |
| partOf |
central processing unit
NERFINISHED
ⓘ
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 NERFINISHED ⓘ RISC processors ⓘ digital signal processors ⓘ von Neumann architecture NERFINISHED ⓘ |
| uses |
adders
ⓘ
decoders ⓘ logic gates ⓘ multiplexers ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Arithmetic logic unit Description of subject: An arithmetic logic unit (ALU) is a fundamental digital circuit in a computer processor that performs basic arithmetic and logical operations on binary data.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Digital computer