Monday, September 7, 2009

Day 2- Hardware

The main question I have about hardware is how do USB drives work? I know that a floppy or a CD are physically altered to store the information and they wear out because of it. Do USB drives have that same problem? Also, why is it that certain USB drives can hold so much more information than others while remaining about the same size?
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1 comment:

  1. cschaefferSeptember 14, 2009 at 2:48 PM

    Day 4
    The USB port has EEPROM chip which is flash memory (Electronically Erasable Progeammable Read Only Memory)which is like ROM and it moves chunks of data back from the devices to the computer. It is a solid state so there are no moving parts and there are is a grid and rows of columns whcih have two transmiters at each of the intersection. Different USB drives can store different amounts of data based on the flash memory chip and the mass controller, which has a little bit of ROM and RAM on it. There is much more detail that goes into USBs to find out more look at this article:
    http://electronics.howstuffworks.com/flash-memory1.htm
    and
    http://en.wikipedia.org/wiki/USB_flash_drive

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