Are the Components of the System Unit?

So, what computer? Clarification important here is that the word "computer" can mean different people, oddly enough, two different things: monitors, printers, computer cases, even ... computer mouse, because - "arrow on the monitor does not move "means - the computer does not work! :) We were there with you would be interested in it" iron box, which stood under the table ":) - the system unit.

 

For the purpose of clarity (to see all the computer components separately), you can read the article devoted to the assembly of the computer with your hands. Especially the first part. So, a good system unit in an open state looks like this:

 

1  Power supply

2  CPU

3  External graphics card (PCI slot her, AGP, PCI-Express)

4  Memory

5. Optical drive DVD

6  The floppy disk drive (3.5)

7  Hard disk drive (HDD)

8  Motherboard (purple)
 

Let's just say what unit this system good? Him - great! Yes, someone will say that it is - flaws, but replacement parts are very comfortable (nice to see what and where it is activated and does not scratch the neighboring projections) Plenty of room inside also contribute the free circulation of the air flow inside the case and it was - also a plus as chips better cooled. vibrations in this case as well - at least. well, it just looks nice and stylish! :)
 

And this is typical of the system unit rear side:

 

Black connector on the power supply - to power supply (220 V). Underneath - key units of the system outage. Two circular holes (PS / 2 connector), violet - keyboards, green - mice. Below - red rectangular connector. Now connector obsolete (LPT port), now rarely used, and is used widely used to connect a printer. Beside the blue - out of the integrated graphics card. Below it - 4 identical rectangular output - USB connector (for flash drives, mouse, scanners, printers and other devices with a USB interface).

 

Right - the built-in card connector network (RJ-45 to connect the power cord and the computer network organizations). Below - an integrated sound card output (red - to connect microphone, green - speakers or headphones, blue (line in) - to connect device that uses an amplifier). As you can see below (perpendicular to the motherboard) is another video card (external), with its own set of connectors.

 

Components on the unit system - a sort of a basic set (without computer usually will not work.) On the other hand: This set can be expanded with additional devices and chipsets: the increase in the number of hard disk drives (HDD), the ability to use two graphics cards at once, installation of various additional PCI controller, etc..

 

And now let us stay with you directly to the individual components of a computer system unit.