CPUs-Have a Quick Look

Central Processing Unit (CPU) or in other words, the Processor, is recognized as the brain of a computer system. All the instructions, calculations, logical and arithmetic operations, and I/O operations are performed and executed from this unit. The fundamental operation includes the execution of some instructions stored in the physical memory, which is also called a program. A program consists of some series of numbers arranged in a logical form.

For any kind of CPUs, the basic steps of operations are the same. Generally, those are represented as fetch, decode, execute and mark back. Firstly, the fetch step recovers the stored instructions from the memory, and then the decoding step decodes the instruction for creating a significant signal to the different parts of the CPU. After that, execution takes place, in this step; various parts of the CPU join themselves accordingly to perform the requested task.

Finally, in the mark back step, it marks or writes the instruction found in the execution step in a form of memory for quick future operation. Processors from different brands like Intel, AMD, Compaq, Samsung, Dell, Ncr, Alcatel, are available for an affordable price.

Cleaning CPU Fans

People ask how often do we need to clean our computers – as often as possible. One of the least given priority is the CPU fan. Normally, if the CPU fan is unclean or not maintained, it tends to be noisy. It’s either dusty or it lacks oil to spin properly.

To get started, unscrew the CPU fan and pull it out from the computer. Hold it properly, keeping away your fingers from the blade. Spray it with short bursts of air. You may also use an old toothbrush or a sift paint brush to clean the blade and inner part of the fan. Make sure you hold it with your fingers and not to let it spin fast or you’ll get cut.

To fix the fan, use a pointed tool to remove the sticker at the back of the fan. Pour a small amount of WD-40 (lubricant) on the hole to lubricate the bearing. Let it settle. Place the cap back. Give the fan a few spin to have the grease going through the whole bearing. Give it more spin. If you see the fan spinning smoothly, then it is already in good shape and ready to use. Screw it back again in your CPU for use.

By: Kristine