What is a dual core processor - Question 17

edited February 2011 in Computers
What is a dual-core processor and how is it different from an ordinary processor?<br /><br />Best answer (in our judgment) gets a N200 Glo Recharge PIN. Click Reply/Comment to answer. Result in 3 to 4 hours.<br /><br />Terms and conditions apply.
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  • Dual-core refers to a CPU that<br /> includes two complete execution<br /> cores per physical processor. It basically<br />combines two processors and their<br /> caches and cache controllers onto a<br />single integrated circuit (silicon<br /> chip). Dual-core processors provide two<br />complete execution cores instead of<br /> one, each with an independent<br /> interface to the frontside bus. Since<br />each core has its own cache,the<br /> operating system has sufficient<br />resources to handle intensive tasks<br /> in parallel or at the same exact time, which provides a<br /> noticeable improvement to<br /> multitasking. A dual core processor would be able to carry out video recording or playback and at the same time handle the loading of desktop websites easily when compared to single core processor which would try to prioritize the handling of both tasks.
  • A dual core processor is a CPU<br />with two separate cores on the<br />same die, each with its own<br />cache. It's the equivalent of<br />getting two microprocessors in<br />one. It contains<br />two cores (e.g. AMD Phenom II<br />X2, Intel Core Duo)<br />In an ordinary<br />processor the CPU is fed strings<br />of instructions it must order,<br />execute, then selectively store<br />in its cache for quick retrieval.<br />When data outside the cache is<br />required, it is retrieved through<br />the system bus from random<br />access memory (RAM) or from<br />storage devices. Accessing<br />these slows down performance<br />to the maximum speed the bus,<br />RAM or storage device will<br />allow, which is far slower than<br />the speed of the CPU. The<br />situation is compounded when<br />multi-tasking. In this case the<br />processor must switch back<br />and forth between two or more<br />sets of data streams and<br />programs. CPU resources are<br />depleted and performance<br />suffers.<br />In a dual core processor each<br />core handles incoming data<br />strings simultaneously to<br />improve efficiency. Just as two<br />heads are better than one, so<br />are two hands. Now when one<br />is executing the other can be<br />accessing the system bus or<br />executing its own code. Adding<br />to this favorable scenario, both<br />AMD and Intel's dual-core<br />flagships are 64-bit.<br />To utilize a dual core processor,<br />the operating system must be<br />able to recognize multi-<br />threading and the software<br />must have simultaneous multi-<br />threading technology (SMT)<br />written into its code. SMT<br />enables parallel multi-threading<br />wherein the cores are served<br />multi-threaded instructions in<br />parallel. Without SMT the<br />software will only recognize<br />one core. Adobe® Photoshop®<br />is an example of SMT-aware<br />software.
  • A dual core is composed of two cores. A core is that part of processor which performs the reading and execution of instructions. While a single core has only one core. It can only process one instruction at a time.
  • For being more original, I will give this one to @charlsecy. Congratulations. The other two answers are very correct but not original. A dual-core processor can be simplified to mean a two in one processor. Its benefits are more noticeable in multi-tasking applications like in PCs, Tablets, and high-end smartphones. charlsecy, I will be sending you a personal message soon.
    The Truth is Out There.
  • A dual-core processor, such as the Intel Core Duo, is composed of two independent cores. It can described as an integrated circuit which has two or more individual processors<br />Manufacturers typically integrate the cores onto a single integrated circuit die (known as a chip multiprocessor), or onto multiple dies in a single chip package.<br /><br />A multi- core processor implements multiprocessing in a single physical package while Single-core processors can process only one instruction at a time although for several instructions, to be processed together however, are still consumed into the pipeline one at a time.
  • Thank you to share knowledgeable discussion.
  • I think Dual Core processor has more reliability than any other processor's in market like I3 and I5, people may use this upgraded processors but they trust only on Dual core processors.
  • Dual-core usually refers to a Central Processing Unit that comprises of two full execution cores per physical processor. It has joined two processors together and their caches and cache controllers onto a single integrated circuit or silicon chip. <br /><br /><br />Web design London<br />
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