IT Week 3

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  • A system unit , also known as a base unit , is the main body of a desktop computer , typically consisting of a plastic enclosure containing the motherboard , power supply , cooling fans , internal disk drives , and the memory modules and expansion cards that are plugged into the motherboard, such as video and network cards .
  • Motherboards include a separate block of memory made for low power consumption CMOS RAM chips, which is kept alive by a battery even when the PC’s power is off.
  • Motherboards include a separate block of memory made for low power consumption CMOS RAM chips, which is kept alive by a battery even when the PC’s power is off. C omplementary m etal- o xide s emiconductor memory
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