SACWA Explains Computer Hardware
“How familiar are you with what’s inside that shiny metal box of yours?”
For as complicated as the inner workings of computers may seem, they are really only made up of some key pieces.
If you ever have a hardware problem or would simply like to upgrade one of those pieces it does not hurt to know what they do.
There are various things to consider like compatibility issues parts suitable for your current components. This is something SACWA will assist with and explain to you.
Motherboard, Main Board, “Mobo” (MB)
Your motherboard is where all of the components I’m going to talk about will inevitably plug into. It has slots for most removable components like RAM, IDE/SATA drives, and video cards. If you are a beginner, I wouldn’t advise you to upgrade your motherboard yourself, but a lot of the other components I will cover require you to unplug things from the motherboard. To view system specs, try Speccy.
Central Processing Unit (CPU)
If a computer was a human, the CPU would be the brain.
It is the single most important piece of a computer because it does all the processing of data, calculations, and it controls most of the other components.
The CPU is usually located directly underneath a cooling unit on the motherboard.
Power Supply Unit (PSU)
The PSU provides power to your whole PC and is usually located in the top-back of your computer. PSUs are rated by the amount of power they give out (e.g. 600 watts). It is important that your computer is powered properly so that it does not fail on you. To upgrade your PSU, you should research the specifications of the other components in your system, most importantly the video card and CPU. You also want to make sure you get the proper connectors for your system. Calculate your PC power supply with eXtreme PSU Engine.
Hard Drive, Solid State Drive. (HDD, SSD)
Your hard drive is what stores all your data long-term. Hard drives are generally kept in the bottom-front of most PCs, and are usually connected to the motherboard via SATA cables (IDE for older PCs). Also, there will be a power cable. If yours dies on you or you simply want to upgrade to a bigger one (storage wise), you just need to purchase one with the proper connections. Hard drives are usually screwed into place.
Random Access Memory “DDR1′ 2′ 3” (RAM)
RAM is temporary (or short-term) memory and helps out with overall system performance and speed. RAM consists of long sticks that are plugged directly into your motherboard. Consult your owner’s manual or system information to determine the maximum amount of RAM that’s supported by your system. Upgrading RAM depends on how many slots you have and the maximum size each slot supports. Some computers require that you have the same amount of RAM in each slot. This would be listed in your manual as well.
Optical Disk Drive “CD-ROM, DVD-ROM, Blu-Ray” (ODD)
Your disk drive(s) is/are generally located at the top-front of your machine. They allow you to play and burn (copy) CDs and DVDs. Since discs spin in these drives, they occasionally break on you. Also, the speed at which these drives can read and write data is constantly increasing. To upgrade a CD or DVD-ROM, simply unplug and unscrew the existing drive and plug the cables (power, SATA/IDE) into the new drive. If you are upgrading from one drive to multiple drives, you can learn about setting the drives to master/slave configuration here.
Video Card, Graphics Card (GPU)
Your video card is what allows you to view anything on your monitor (makes sense). If you’re into gaming, you either left already to learn how to build a gaming PC or you stuck around to see what I had to say about video cards. Modern games require better video cards. Your video card is usually located in the bottom-back portion of your computer case. Aside from size specifications, slot placement, motherboard type, processor speed, and power intake – which are all compatibility issues – upgrading your video card is as simple as unplugging the stock card and plugging the new video card in its place.
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