Parent Category: Computers

Computer hardware and software components.

Hardware
(1) power notebook computers
Power is indispensable in the computer power supply equipment, its role is to 220V AC power adapter for the computer to use 5V, 12V, 3.3V DC, its performance has a direct impact on the stability of the other devices, and thus will affect the stability of the machine.

(2) Motherboard is a platform for the various components of the computer work, which connect the various components of the computer closely together, the various components for data transmission through the motherboard. In other words, the computer an important transport hub on the motherboard, the stability of its work affects the stability of the whole work.

(3) CPU common desktop computer host
CPU (Central Processing Unit) that the central processor is the core of computing and control core of a computer. Its main function is to explain the data in the computer instruction and dealing with computer software. By the arithmetic unit, the CPU controller, registers, cache and data links between them, control and status bus structure. As the core of the system, the CPU is also the entire system execution units, so the CPU has become the core component to determine the computer's performance, many users are using it as a standard to determine the grade of the computer.

(4) memory memory known as the internal memory or random access memory (RAM), divided into DDR memory and SDRAM memory (SDRAM due to low capacity storage is slow, poor stability, but now has been DDR eliminated) memory is the electronic storage device, which consists of circuit boards and chips, is characterized by small size, speed, power can be saved without electricity emptied, the computer can store data in memory when switched on, shutdown will be automatically emptied of all the data. Memory DDR, DDR II, DDR III three categories, capacity 1-8GB.

(5) hard drives are external memory, made of metal floppy, floppy disk have in mind functions, so the reservoir to the data on the disk, regardless of the boot or shutdown, all is not lost. Hard disk capacity now stands at TB level, size 3.5 inches, 2.5 inches, 1.8 inches, 1.0 inches, interfaces, IDE, SATA, SCSI, etc., SATA is the most common. Common computer mouse
Mobile hard disk hard disk storage media, emphasizing the portable storage products. The vast majority of the market for mobile hard disk is a standard hard drive-based, and only a very small part is a miniature hard disk (1.8-inch hard drive, etc.), but the price factor determines the mainstream mobile hard disk or to a standard notebook hard drive . With hard disk storage media, removable hard disk read and write data model with standard IDE hard disk is the same. The removable hard disk to use more transmission speed interface such as USB, IEEE1394 high speed data transmission system.

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