About: Accumulator (computing)

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In a computer's central processing unit (CPU), the accumulator is a register in which intermediate arithmetic logic unit results are stored. Without a register like an accumulator, it would be necessary to write the result of each calculation (addition, multiplication, shift, etc.) to main memory, perhaps only to be read right back again for use in the next operation.

Attributes	Values
rdf:type	Thing building
rdfs:label	Accumulator (computing) (en)
rdfs:comment	In a computer's central processing unit (CPU), the accumulator is a register in which intermediate arithmetic logic unit results are stored. Without a register like an accumulator, it would be necessary to write the result of each calculation (addition, multiplication, shift, etc.) to main memory, perhaps only to be read right back again for use in the next operation. (en)
sameAs	Accumulator (computing) Accumulator (computing) Accumulator (computing)
dbp:wikiPageUsesTemplate	dbt:Authority_control dbt:Clarify dbt:ISBN dbt:Refbegin dbt:Refend dbt:Rp dbt:Short_description
Subject	Central processing unit Digital registers
thumbnail	wiki-commons:Special:FilePath/Walther_WSR-16_Inside_the_Machine.jpg?width=300
foaf:depiction
gold:hypernym	Register
prov:wasDerivedFrom	http://en.wikipedia.org/wiki/Accumulator_(computing)?oldid=1063323744&ns=0
Wikipage page ID	3116 (xsd:integer)
page length (characters) of wiki page	12396 (xsd:nonNegativeInteger)
Wikipage revision ID	1063323744 (xsd:integer)
Link from a Wikipage to another Wikipage	Processor register Supercomputer X86 X86-64 Adding machine Addressing mode Arithmetic logic unit Bitwise operation Blaise Pascal Central processing unit Digital registers Central processing unit Digital Equipment Corporation Donald Knuth Drum memory Mainframe computer PDP-10 PDP-11 PDP-6 PDP-8 PIC microcontrollers Punched card Computer Computer architecture Computer data storage ENIAC Kilobaud Microcomputing Microcontroller Operand Data General Nova Gottfried Wilhelm Leibniz IBM 650 IBM 701 IBM 7070 IBM System/360 Percy Ludgate HP 2100 Institute for Advanced Study Instruction set architecture Intel 4004 Intel 8008 Intel 8051 Intel 8080 Intel 8086 J. Presper Eckert MIX MOS Technology 6502
has abstract	In a computer's central processing unit (CPU), the accumulator is a register in which intermediate arithmetic logic unit results are stored. Without a register like an accumulator, it would be necessary to write the result of each calculation (addition, multiplication, shift, etc.) to main memory, perhaps only to be read right back again for use in the next operation. Access to main memory is slower than access to a register like an accumulator because the technology used for the large main memory is slower (but cheaper) than that used for a register. Early electronic computer systems were often split into two groups, those with accumulators and those without. Modern computer systems often have multiple general-purpose registers that can operate as accumulators, and the term is no longer as common as it once was. However, to simplify their design, a number of special-purpose processors still use a single accumulator. (en)
foaf:isPrimaryTopicOf	http://en.wikipedia.org/wiki/Accumulator_(computing)
is Wikipage redirect of	Accumulator-based architecture Accumulator machine
is Link from a Wikipage to another Wikipage of	List of words having different meanings in American and British English (A–L) Little man computer Machine code NAR 1 NAR 2 NCR 315 78K AN/USQ-17 AN/USQ-20 AN/UYK-8 Accumulator Addressing mode Apollo Abort Guidance System Apollo Guidance Computer Atlas (computer) Ballistic Research Laboratory Berkeley Packet Filter Blackfin Burroughs Medium Systems CER-12 CESIL COMPASS CPU Sim

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