Computer is made from parts: motherboard (main board ), ram (more ram can make work thinks faster at once), hard drive- hdd ( memory), video card ( hd is the best ( video card is separate only in pc computers, not laptops) ), and other not very important, like dvd re-writer, wireless connection, . If there are any fault you need to change one part, not a think in the middle of no where.  Any problems with any part such as the battery, fan, ram, wireless card, dvd or hard drive the unit wil...

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