PC: Personal Computer

CPU: Central Processing Unit

CPU Fan: the "fan" of the central processing unit

MB: MotherBoard

RAM: Random Access Memory, Divide specifications by PC- code, such as PC-133 and PC-166, PC-27

HDD: Hard Disk Drive

FDD: floppy disk drive

CD-ROM: compact disk read only memory

DVD-ROM: DVD drive digital versatile disk read only memo. Ry

CD-RW: compact disk rewriter of recorder

VGA: display card (formal language of display card should be Display Card)

AUD: sound card (formal language of sound card should be Sound Card)

LAN: network card (formal language of network card should be Network Card)

Extended information

A computer operating system should usually include the following five functional modules:

(2) job management: the program that completes an independent task and the data it needs constitute a job. The task of job management is mainly to provide users with an interface to use computers to run their own jobs conveniently, and to schedule and control all jobs that enter the system, so as to use the resources of the whole system as efficiently as possible.

(3) memory management: allocate memory space for each program and its data, and ensure that they do not interfere with each other.

(4) equipment management: allocate equipment according to the user's request to use the equipment, and at the same time receive the equipment's request (called interrupt) at any time, such as asking for information input.

(5) file management: it is mainly responsible for the storage, retrieval, enjoyment and protection of files, and provides convenience for users to operate files.