Computer configuration is the standard for measuring the performance of a computer. It is mainly determined by the CPU, graphics card, motherboard, memory, hard disk, monitor, chassis, optical drive, keyboard, mouse and cooling system.

Branded computers are computers produced by computer manufacturers with a certain scale and technical strength, with registered trademarks and independent brands. Such as IBM, Lenovo, Dell, HP, etc. are all well-known brands at present. Brand machines have undergone strict performance testing before leaving the factory. They are characterized by stable performance, guaranteed quality and ease of use.

Assembly machine computer accessories sellers combine various computer accessories together according to the user's consumption needs and purchasing intentions. The characteristics of the assembly machine are that the computer configuration is more flexible, the upgrade is convenient, and the cost performance is slightly higher than that of the brand machine. It can also be said that under the same performance conditions, the price of the brand machine is higher. Regarding choosing a brand machine or an assembled machine.

Extended information

Power supply is an indispensable power supply device in computers. Its function is to convert 220V AC power into 5V, 12V, and 3.3V DC power used in computers. Its performance is excellent. If it goes bad, it will directly affect the stability of other equipment, which will in turn affect the stability of the entire machine. When the laptop comes with its own lithium battery, it can provide effective power for the laptop.

The motherboard is a platform on which various components in the computer work. It closely connects the various components of the computer together, and each component transmits data through the motherboard. In other words, the important "transportation hubs" in the computer are all on the motherboard, and its working stability affects the stability of the entire machine.

CPU is the central processing unit, which is the computing core and control core of a computer. Its function is mainly to interpret computer instructions and process data in computer software. The CPU is composed of arithmetic units, controllers, registers, caches, and buses that implement data, control, and status between them.

Memory is also called internal memory or random access memory (RAM), which is divided into DDR memory and SDRAM memory. (However, SDRAM has been eliminated by DDR due to its low capacity, slow storage speed and poor stability.) Memory belongs to Electronic storage device, which is composed of circuit boards and chips;

It is characterized by small size, fast speed, and can be stored when there is electricity and cleared when there is no electricity. That is, data can be stored in the memory when the computer is turned on and turned off. All data in it will be cleared automatically. There are three categories of memory: DDR, DDR II, and DDR III, with capacities from 1 to 64GB.

Hard disks are external memories. Mechanical hard disks are made of metal magnetic disks, and the magnetic disks have a memory function, so the data stored on the ceramic disks will not be lost whether the computer is turned on or off. The hard disk capacity is very large, reaching TB level, with sizes of 3.5, 2.5, 1.8, 1.0 inches, etc., and interfaces including IDE, SATA, SCSI, etc., with SATA being the most common.

Mobile hard drives are storage products that use hard disks as storage media and emphasize portability. The vast majority of mobile hard drives on the market are based on standard hard drives, while only a few are based on micro hard drives (1.8-inch hard drives, etc.). However, price factors determine that mainstream mobile hard drives are still based on standard notebook hard drives. Base.

Because the hard disk is used as the storage medium, the data reading and writing mode of the mobile hard disk is the same as that of the standard IDE hard disk. Mobile hard disks mostly use faster transmission interfaces such as USB and IEEE1394, which can transmit data to the system at a higher speed.

Solid-state hard drive is a hard drive made from a solid-state electronic storage chip array, which is composed of a control unit and a storage unit (FLASH chip). The shape and size of solid-state drives are completely the same as ordinary hard drives, but solid-state drives are faster than mechanical hard drives.

Reference material: Baidu Encyclopedia-Computer Configuration

Reference material: Baidu Encyclopedia-Computer