Describe the PCI Express bus and contrast it with previous versions of the PCI bus.

What will be an ideal response?


PCI Express (PCIe) uses an altogether different architectural design than conventional PCI and PCI-X; PCIe is not backward compatible with either. PCI Express will ultimately replace both these buses as well as the AGP bus, although it is expected PCI Express will coexist with conventional PCI for some time to come. Whereas PCI uses a 32-bit or 64-bit parallel bus, PCI Express uses a serial bus, which is faster than a parallel bus because it transmits data in packets similar to how an Ethernet network, USB, and FireWire transmit data. A PCIe expansion slot can provide one or more of these serial lanes. Another difference in PCI Express is how it connects to the processor. One or more PCI Express slots used for video cards have a direct link to the North Bridge or to the processor (using Sandy Bridge or Ivy Bridge architecture). PCI Express currently comes in four different slot sizes called PCI Express ×1, ×4, ×8, and ×16.

Computer Science & Information Technology

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Before you can use a structure to store data, you must create a(n) ____________ of the structure in memory.

a. copy b. identity c. instance d. field

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What is the following an example of?

C:\Documents and Settings\All Users\Documents\My Music A) Fields B) Address C) Path D) Document Name

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A pair of ________ is needed around each nested function

Fill in the blank(s) with the appropriate word(s).

Computer Science & Information Technology

"Shoulder spying" is used in public or semi-public settings when individuals gather information they are not authorized to have by looking over another individual's shoulder or viewing the information from a distance. __________

Answer the following statement true (T) or false (F)

Computer Science & Information Technology