Word:

Accumulator

Ac`cu´mu`la`tor
n.1.One who, or that which, accumulates, collects, or amasses.
2.(Mech.) An apparatus by means of which energy or power can be stored, such as the cylinder or tank for storing water for hydraulic elevators, the secondary or storage battery used for accumulating the energy of electrical charges, etc.
3.A system of elastic springs for relieving the strain upon a rope, as in deep-sea dredging.
Noun1.accumulator - a person who is employed to collect payments (as for rent or taxes)
Synonyms: collector, gatherer
2.accumulator - a voltaic battery that stores electric charge
Synonyms: storage battery
3.accumulator - (computer science) a register that has a built-in adder that adds an input number to the contents of the accumulator
(processor)accumulator - In a central processing unit, a register in which intermediate results are stored. Without an accumulator, it would be necessary to write the result of each calculation (addition, multiplication, shift, etc.) to main memory and read them back. Access to main memory is slower than access to the accumulator which usually has direct paths to and from the arithmetic and logic unit (ALU).

The canonical example is summing a list of numbers. The accumulator is set to zero initially, each number in turn is added to the value in the accumulator and only when all numbers have been added is the result written to main memory.

Modern CPUs usually have many registers, all or many of which can be used as accumulators. For this reason, the term "accumulator" is somewhat archaic. Use of it as a synonym for "register" is a fairly reliable indication that the user has been around for quite a while and/or that the architecture under discussion is quite old. The term in full is almost never used of microprocessor registers, for example, though symbolic names for arithmetic registers beginning in "A" derive from historical use of the term "accumulator" (and not, actually, from "arithmetic"). Confusingly, though, an "A" register name prefix may also stand for "address", as for example on the Motorola 680x0 family.

2. A register, memory location or variable being used for arithmetic or logic (as opposed to addressing or a loop index), especially one being used to accumulate a sum or count of many items. This use is in context of a particular routine or stretch of code. "The FOOBAZ routine uses A3 as an accumulator."
bearer, collector, conductor, Gardner, gatherer, gleaner, holder, Isabella Stewart Gardner, packrat, rent collector, revenue enhancement, tax, taxation
Translate Accumulator to Spanish, Translate Accumulator to German, Translate Accumulator to French
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Accubation
acculturate
acculturation
acculturational
acculturative
Accumb
Accumbency
Accumbent
Accumber
Accumulate
accumulated
Accumulation
Accumulation of degrees
Accumulation of energy
Accumulative
Accumulative judgment
-- Accumulator --
accumulator register
Accuracy
Accurate
Accurately
Accurateness
Accurse
Accursed
accurst
Accusable
Accusal
Accusant
Accusare nemo debet se
Accusation
Accusatival
Accusative
accusative case
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