What do you look for when buying a desktop computer?

The most important part of the computer is the power supply, motherboard, CPU, graphics card, memory module, just these things, pay attention to a little when buying, the speed of the computer depends on the discrete graphics card and memory module.

What kind of computer to buy is linked to your own needs, mainly look at the following points (non-DIY assembly machine):

CPU There are core and AMD CPUs on the market now, and AMD is still ignored by ordinary people. The main choice is the Intel Core series, and the current mainstream configuration is the Core i5 (high-end i7, low-end i3).

The motherboard and CPU should be matched, which can be ignored.

Memory is generally concerned with capacity.

Graphics cards (mainly divided into game-level and professional-level) don't have much demand, just buy an ordinary mainstream one, and gamers buy a game-level graphics card. The graphics card video memory is generally 2G, and those below 2G are outdated.

Hard disks are divided into SSD solid state drives and HDD mechanical hard drives, the former is better than the latter, of course, it is also more expensive (both to see the capacity). Generally, the machine is HDD, which mainly depends on the speed of the capacity (the bigger the better).

Heat dissipation This choice of notebook should pay attention to the point, desktop casual.

The above applies to select notebooks and assembled desktops.

1. **Processor.

The role of the CPU is to take instructions from memory or cache memory, put them in the instruction registers, and decode the instructions. It decomposes the instruction into a series of micro-operations, and then issues various control commands to execute a series of micro-operations, so as to complete the execution of an instruction.

2. The motherboard of the computer case.

The motherboard plays a pivotal role in the entire microcomputer system. It can be said that the type and grade of the motherboard determine the type and grade of the entire microcomputer system. The performance of the motherboard affects the performance of the entire microcomputer system.

3. Display.

It is also commonly referred to as a monitor. A monitor is an IO device that belongs to a computer, i.e., an input and output device. It is a display tool that displays a certain electronic file on the screen through a specific transmission device and then reflects it to the human eye.

4. Memory module.

Memory modules are an essential part of a computer, and the CPU can address the memory through the data bus. Historically, computer motherboards had main memory, and memory modules were extensions of the main memory.

5. Graphics card. It is mainly responsible for converting the display signal sent by the host computer to the display into a general electrical signal, so that the display can understand what the PC is asking it to do. There is also memory on the graphics card, called"Display memory", how much it will directly affect the display effect of the display, such as clarity and color richness and so on.

Desktop computers require the purchase of the following things: motherboard, CPU, memory module, graphics card (optional), hard disk, power supply, chassis, mouse, keyboard, monitor, speaker (optional). And that's a complete computer.

Take the money directly to the computer city to buy a brand machine and you will have it Assemble more desktop computers, motherboards, CPUs, memory, hard disks, power supplies, monitors, chassis, optical drives (or not) mice, keyboards, audio, etc.

These are the accessories you need, and you can buy them according to your budget.