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PC Basics

What's what and how this stuff works. (for the novice PC user)

11/01/2006


     This article is designed for the novice PC user so that you can understand what components make up a personal computer.

     Every PC is made up of hardware and software this article is almost entirely focused on the hardware so lets begin with the essentials. Inside every case, laptop, or desktop is a motherboard this is the large board that all the other component hook up to.

     The brains of the computer is referred to as a CPU or central processing unit. this is generally located near the top of the motherboard generally covered by a cooling device (heat sink) they come in many shapes and sizes. The CPU hooks into the motherboard using a socket. The socket type is determined by the number of pins the socket has, for example a 478 AM XP CPU uses 478 pins in the socket where the AMD 64 bit 939 chip uses 939 pins. The idea behind the number of pins is the more you have the more data you can push so if you had to identical CPU speed like AMD 3200 XP socket 478 CPU and an AMD 3200 64bit 939 the 939 chip would be able to push data faster due to the amount of pins on the chip.
 

 
     The next piece of hardware connected to the motherboard is the hard drive. This component is generally hooked up using a cable, either IDE or SATA. This unit is used primarily for storage and software. The hard drive is where all the data is kept like the OS or Operating system and the Applications. The size of the drive is measured in Bytes. Now a days an average size hard drive is anywhere from 40 to 100 gigabytes of space. The speed of the drive is specified by revolutions or the spins that the head can read the data on the disk. Most drives run around 7200 RPM (revolutions per minute) some more expensive drives can run 10,000 RPM's or faster.



     A commonly confused item is memory many people think that memory and hard drive size are the same when in fact memory or RAM is really a chip connected to the motherboard and as the acronym says RAM or random access memory's  job is the have information on hand for the processor to use. Memory runs much faster then the hard drive and acts as an active buffer for running software. RAM is also measured in Bytes but in general much smaller amounts. The average PC can have anywhere from 128 Megabytes to 1 Gigabyte of memory and up. The memory chip connects to the motherboard using a socket so the same principals as the CPU apply when dealing the memory speed the more pins the faster the memory or should I say more space to move the information on the memory block or chip. Back in the early 90's memory used 32 and 78 pin dimm's but now a days most newer PC's use DDR or DDR2 memory ranging from 184 or over 200 pins.

 



     When it comes to peripherals many motherboard have the component built in or On Board. These parts are generally Video Audio and Sound. For the avid gamer the on board video is generally not good enough so ad-on video cards are required there are two main type in the market right now AGP and PCI-Experss AGP or advanced graphics port are slowly going always replaced by the PCI-e interface that again has more pins and allows for more data to be push then the older 64bit AGP cards. The slots a on the motherboard are designed to accommodate the video cards or other peripherals bellow is a few photos of different types notice the size and location of the PCI vs PCI-e vs AGP. all these location and sizes are industry standards so though one company might use a different colored socket the size and use is the same.
 

Part 2 coming soon!!!!!

 


 

 


 

 

 

Marns CDA

By

pr101j

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