ALU


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ALU

(computer science)

ALU

(processor)

ALU

(body)

ALU

(Arithmetic Logic Unit) The high-speed CPU circuit that does calculating and comparing. Numbers are transferred from memory into the ALU for calculation, and the results are sent back into memory. Alphanumeric data are sent from memory into the ALU for comparing. The results are tested by GOTOs; for example, IF ITEMA EQUALS ITEMB GOTO UPDATE ROUTINE.

Some chips have multiple ALUs that allow for simultaneous calculations. For example, Chromatic Research's Mpact media processor chip had 450 of them. It allowed audio, video and other multimedia processes to be performed simultaneously. See control unit and Mpact chip.


An ALU in 1957
This was an arithmetic logic unit you sit back and admire. It was part of Honeywell's Datamatic 1000 computer. (Image courtesy of Honeywell, Inc.)







Thirty Years Later
The ALU embedded within this 386 chip would fit on the end of a pencil eraser with room to spare. (Image courtesy of Intel Corporation.)
References in periodicals archive ?
The branch-specific phase of CLC3 for ordnance officers will transfer to ALU in early fiscal year 2009.
The ordnance and quartermaster technical courses will move to ALU in late fiscal year 2009 and early fiscal year 2010, respectively, and the transportation technical courses will be in place by late fiscal year 2010.
The consolidation of courses and resources at ALU provides opportunities for achieving numerous synergies and efficiencies.
This is truly an exciting day for our library and for the university, since this is the first collection to be added to our new logistics library," said Barbara Mroczkowski, the acting president of ALU.
of the Palestinians, the ALU said, asserting that the order comes as part of a
The establishment of ALU at Fort Lee supports the formation of a Logistics Corps.
Donating $500,000 in free online advertising space to encourage Web surfers to visit the ALU Web site from both Microsoft-related Web sites and the Web sites of other online companies
ALU is also home to Army Sustainment, the Army's professional bulletin that provides sustainers with a venue for disseminating information on sustainment plans, policies, tactics, techniques, and procedures.
Using ALU we expect to save 10% on our annual equipment rental costs and reduce capital expenditures on mobile assets by 8% annually," said Phillip Gill, director of Biomedical Engineering, Hennepin County Medical Center.
ALU vice president of Asia Pacific Sales Matthieu Destot, said this deal led Alcatel into a new era with a bigger cash reserve for new investment in its business expansion, especially in the Asia Pacific region.
ALU needs to reduce on its costs to survive and part of its turn-around plan is the division of its operations into four main units - core and fixed networks, wireless and platforms.