Tips for buying a computer / Part 2. The role of each part

 Hello. 

In the previous post, I considered my purpose and budget before buying a computer, and found the specifications of the computer I need. Now, let's take a quick look at what each part of the PC in the recommended specifications does. 
(Please let me know that this post is written based on someone who knows nothing about computers.) 
1. CPU? Graphics card? What is this?

CPU and graphics card? RAM? Naturally, it is likely that you have never heard these words before. 
The parts that make up the computer we use are roughly as follows: 
CPU 
Graphics card (GPU) 
RAM 
Motherboard (motherboard) 
HDD or SSD (secondary storage device) 
Power supply (PSU) 
To help you understand, think of a computer as a "company" and explain the parts of a computer in terms of it.

2. CPU 
The CPU is the central processing unit of a computer. Simply put, it is like the president of a company. 
In the same vein as the above analogy, good CPU performance means that your boss is smarter and better at his job, right? 
CPU performance has a big impact on the overall performance of your PC.

3. Graphics Card (GPU) 
A graphics card (GPU) is a device that specializes in processing graphics tasks on a computer. 
If you listen to the above analogy, you can see that the staff in the company are good at counting money, but not good at other things. 
No matter how smart the boss is, he can't do everything! Without such competent staff, the company (computer) will fall apart, right? 
If the purpose of purchasing a computer is gaming, it is the equipment in which you invest the most money. 
4. RAM 
RAM is also called "primary memory device". From the moment the computer is turned on, the CPU mainly stores and uses the information it needs here. 
For example, the president's secretary. If there are many secretaries and they are good at their work, the boss's efficiency will increase! 
There is also something called VRAM! This is the dedicated RAM of the aforementioned graphics card. 
For example, other temples under employees who often count money? 
In general, the larger the capacity and speed of the RAM, the better the performance of the computer. 
5. Motherboard 
The motherboard is responsible for providing power to components such as the CPU, GPU, and RAM, making them work within a single system. All computer components are plugged into the motherboard. 
For example, a company office. If the office is not comfortable, the president and staff will not be able to work well. 
6. Power (PSU) 
A power supply is a device that is responsible for providing power to a computer. If the power supply is not sturdy, computer components will not break and can be used for a long time. 
Laptops usually depend on batteries and chargers instead of power sources. 
For example, the food expenses of company employees. You can't make them work without giving them food! 
Do you understand a little? Well, this is how you know roughly what each part does. 
Thank you for reading this long article.