dual core

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dual core

A single chip that contains two distinct processors that work simultaneously. IBM introduced dual cores in its Power 4 chips in 2000. In 2004, Sun and HP introduced their first dual core CPUs.

The first dual core chips for x86-based PCs and servers were introduced in 2005 and included the Pentium D and Pentium Processor Extreme Edition 840 from Intel and the Opteron 800 and Athlon 64 X2 from AMD. A year later, Intel added dual cores to its Itanium line.

Increased Performance - Similar Power Consumption
Because the continual increase in single core clock speeds were using more and more power and generating excessive heat, dual cores were developed to expand performance without more heat. Dual core systems may use the same or a little bit more energy, but achieve approximately an 80% increase in processing power over single core CPU chips.

For Everybody
Dual-core chips are not just for advanced applications; rather, everyday tasks can take advantage of two simultaneous processing streams. For example, routine downloads of e-mail and software updates that increasingly take place in the background no longer slow down the foreground application. Virus scans and backup programs can be initiated without interfering with the primary task.

CPUs with two or more cores gained significant momentum in the 2007-2009 time frame, not only in servers, but in desktop and laptop computers as well. See multicore, triple core, quad core, dual processor, Pentium D, Pentium Processor Extreme Edition, Core 2 and core.


Dual Core Vs. Single Core
No matter the mode of operation, dual-core chips double the processing power of any computer.


Dual Core Vs. Single Core
No matter the mode of operation, dual-core chips double the processing power of any computer.


Dual Core Vs. Single Core
No matter the mode of operation, dual-core chips double the processing power of any computer.
References in periodicals archive ?
Tenders are invited for annual rate contract for repair and maintenance of dc system of stage i to v, kstps, kota
So conversion to light-rail for trams should be combined with electrification, at lower cost for the lower voltage DC system.
While the former requires 595mn kWh for 100,000 TR, the DC system will require only 350mn kWh.
Westinghouse Solar will exhibit their latest Plug-and-Play AC module as well as their DC system for commercial systems.
1), the DC system consumed more power than the AC system, and the AC system consumed more power than the direct drive.
Also on show will be Model 915 AC system and the Model 976 Pulsed DC system, two of the best selling core products for the packaging and plastics industries.
But with a retrofit, having a 12-to-16-week lead time on a DC system can help keep the timeline in place.
While digging ditches in the New York streets, he found little comfort in burying electric lines for Edison's DC system.
Driven by a dual DC system, the unit has a speed range up to 500 FPM.
Specifically, he makes the point that private pension plans have moved toward a DC system away from the traditional DB; this reflects the changes in worker mobility, which has increased in past decades.
Think of the DC system as an old tree with many limbs and apples.
The 384 kW DC system is the first large-scale solar deployment for the city of Santa Barbara as well as being the largest solar power system in the city.