Today, computer debugging and maintenance is started, and the first lecture is given to us by Wang. It mainly talked about the exam outline, and the main components of the computer system and the two knowledge points of the motherboard.
The first is the main components of the computer, as shown below:
The hardware system is a general title that constitutes a variety of physical devices of the computer system, which is the material basis of the computer system. The software system is a general name for programs and various documents (Documents) prepared to run, manage, and maintenance, which enlays the functionality of your computer to improve your computer.
The hardware of the computer mainly refers to the host and peripherals, where the host includes motherboard, CPU, memory bar, hard disk, floppy disk drive, optical drive, graphics card, sound card, chassis, power supply, etc., computer peripherals mainly include display, keyboard, mouse, speaker , Printer, scanner, fax machine, game handle, etc.
Software systems mainly include system software, programming language, application software, and we usually divide system software and application software.
Then start introducing the motherboard: motherboard and name motherboard, motherboard and system disk, etc. Is one of the most important components in the computer, the basis of the entire computer
Common motherboard types have an AT board type and ATX plate type. The motherboard's CPU socket has two categories: slot and socket, slot1, slot2 is Intel's product, Slot A is AMD's products. Socket370, Socket478 and other four Intel companies, Socket A, Socket 462, etc. are AMD's products. And we talk about 478, 462 refers to the number of CPUs' pinpins.
The chipset of the motherboard is the soul and core of the motherboard, mainly composed of Nanqiao chip and Northbridge chip. Among them, the North Bridge chip is a bridge, AGP, PCI, DRAM, and Nanqiao chip such as a CPU, AGP, PCI, DRAM, and Nanqiao chip to connect with it through different ways. The mainstream motherboard chipset is 694X, KT133 / KT, i810, I815 / I815E, I845 / I845D, I850, BX series, VIA
133A
, MVP4, KT266 series, SIS630 / 540, SIS630S / SiS730S and other series.
Main board bus introduction: First understand the concept of bus, the so-called bus is to connect CPU and memory, cache, and external control chips. Control the data channel between the chip and the expansion slot, referred to as the extended bus, or partial bus.
ISA bus: The most common bus is an ISA bus, an industrial standard structure bus.
PCI bus: The frequency is usually 33MHz, and the fastest PCI 2.0 bus speed is 66MHz.
AGP bus: ACCELED Graphics Port is one of the most important things developed on the motherboard in recent years. Transmission speed develops from the earliest 266MHz bandwidth to the 2Gb / s of AGP8X
