Basic Components of System Unit
What are the Basic Components of System Unit (basic computer parts)? It is composed of six (6) basic components the Motherboard, Processor also known as (CPU Central Processing Unit), RAM (commonly known as Memory or memory stick), Hard drive, Video Card and Power Supply. Learn the different functions of each component below.
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What you see above is a Computer case. Inside it is the basic components of a system unit and other computer peripherals that are externally attached to it. The likes of mouse, keyboard, monitor, speakers and etc.
Most people called it often as the “CPU”. But it’s wrong, the CPU (central processing unit) is the processor itself, that we will be talking about more later.
See also: Parts of Motherboard and their Functions
See also: Signs of RAM problems
The core of the system, it really is the PC. Everything else is connected to it, all peripheral devices and it controls everything in the system.
Common form factors are ATX and MicroAtx. MicroAtx is now the most popular among PC users because of its smaller size.
Latest sockets Intel sockets are LGA 1150, LGA 1151, LGA 2011-3 and LGA 2066. On the other hand, AMD latest sockets are AM3+ and AM4.
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Processor is often thought of, as the engine of the computer. It is also called the CPU. Microprocessor is a solid-state central processing unit much like a computer on a chip. An integrated circuit that accepts coded instructions for execution. For me, processor is the brain of the system. There are two types of processors; with pins and the pin-less .
Intel Latest processors are Intel core i3, i5, i7 and Intel core i9. AMD latest processors includes AMD FX Series, AMD Ryzen 5 and Ryzen 7.
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The system memory often called as RAM (random access memory). This is the primary memory, which holds all the programs and data the processor is using at a given time. All memory accessible at any instant (randomly) by a microprocessor. The latest type of RAM is DDR5 as of this writing.
Hard drive/Hard disk drive
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The primary archival storage memory for the system. It is where we saved our files and data including our operating system, antivirus and other applications. There are two types of Hard drive, we have PATA (Parallel Attachment Packet Interface) then SATA (Serial Attachment Packet Interface). Desktop uses the 3.5 inches and the laptop uses the 2.5 inches of hard disk. SATA is the latest and most commonly used.
Controls the information you see on the monitor. This is also called the video card or graphics adapter. On many recent low-cost desktop systems and virtually all portable systems, video might be built into motherboard or included as part of the motherboard’s chipset. On a desktop computer, you can add a high-speed AGP or PCI-Express video card to some systems with integrated video. The latest video card supports VGA (video graphics array), DVI (digital visual interface) and HDMI (high-definition multimedia interface). PCI express is the latest technology of video card.
The one that feeds electrical power (voltages and currents) to every single part in the PC. The latest power supply support both SATA and PATA connectors.
Learning the Basic Components of System unit is helpful. Especially, if you are using computer everyday or student that use computers most of the time. Why? It is the first step of knowing on how to fix your Computer.
For example, you encounter issue/s on your computer, it just turned off automatically. So, knowing that the Power supply is responsible of feeding power into your computer, you will check it’s power cable, power outlet and the power supply itself first before checking other components. It will save you time and effort.