SCL 1 (Quad Core Processor)

A quad-core processor is a chip with four independent units called cores that read and execute central processing unit (CPU) instructions such as add, move data, and branch.Within the chip, each core operates in conjunction with other circuits such as cache, memory management, and input/output (I/O) ports. The individual cores in a quad-core processor can run multiple instructions at the same time, increasing the overall speed for programs compatible with parallel processing. Manufacturers typically integrate the cores onto a single semiconductor wafer, or onto multiple semiconductor wafers within a single IC (integrated circuit) package.

More Cores or Faster Clock Speed? 
 
On the whole, a system with a faster dual-core will feel faster in day-to-day work, but the quad core will reward you when you multitask or the more scientific your work. For an example, the 3.1GHz Intel Core i3-2100 (dual-core) in the Gateway ZX6961-UB20P got a very good 2,639 point score at PCMark7 (a test of day-to-day use), but only a 2.99 point score at CineBench R11.5 (a 3D rendering test). At the same time, Intel Core 2.7GHz Core i5-2500S (quad-core) in a HP Compaq 8200 Elite USDT which got a much lower 2,190 score on PCMark7, but a much higher 4.45 point score on CineBench. The extra cache and cores in the i5-2500S helped the HP get a much higher score on the CineBench R11.5 test, where such enhancements benefit performance.

Quad-core Processor Benefits? 

 Multitasking

•  another important benefit of quad-core processors that will likely be noticed by the average user is that their speed is multitasking. When a single-core processor runs several programs at once, it becomes slow down. with a quad-core, each quad core can be assigned a different program, so even fairly intense programs can be run at the same time without much slowdown.

Long-term Use

• One of the biggest problems with technology is that components become obsolete very quickly. Quad-core processors are distinctive in that there are not many existing programs as of 2009 that can properly utilize them. In essence, the processor technology is ahead of the software's ability to utilize them, so quad-core processors will likely be useful and be able to run program efficiency for several years before they become obsolete.

Considerations

• despite their advantages, quad-core processors have received much skepticism from consumers, since their advantages are only noticed in a few circumstances. Many consider dual core processors to be a cheaper alternatives to quad core, which yields little or no noticeable drop in performance. Others believe that by the time programs and games are produced that can fully utilize multiple cores, there will be processors with more than four course available on the market.

Edited by: FADHIRATUL HASHMIN BT JAFRY & NURUL HASLINDA NASRUDIN