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What does ATX stand for?

Advanced Technology Extended
What does BTX stand for?
Balanced Technology Extended
What does NLX stand for?
New Low Profile Extended
What is the primary motherboard used today?
What physical characteristic defines the ATX and why is it designed this way?
The ATX motherboard has the processor and memory slots at right angles to the expansion cards. This arrangement puts the processor and memory in line with the fan output of the power supply, allowing the processor to run cooler.
What is the difference (aside from size) between the ATX and the microATX?
For the compact use of space, you must give up quantity: quantity of memory modules, motherboard headers, expansion slots, integrated components, even quantity of larger cases, if your original peripherals are still a requirement. In addition they are often designed with power supplies of lower wattage, in order to help keep down power consumption and heat production.
What physical characteristic defines the NLX?
NLX places its expansion slots sideways on a special riser card to use the reduced vertical space optimally. Adapter cards, or daughterboards, that normally plug into expansion slots vertically in ATX motherboards, for example, plug in parallel to the motherboard, so their most demanding dimension does not affect case height. 
What physical design is attributed to the BTX's quieter configuration?
Fewer fans and a more efficient airflow. By lining up all heat producing components between air intake vents and the power supply's exhaust fan, Intel found that the CPU and other components could be cooled properly by passive heat sinks.
BTX has been slow to catch on because of...
More expensive components.
Some manufacturers design and manufacture their own motherboards, which don't conform to the standards. What is this style of motherboard known as?
A motherboard of proprietary design.
What is a heat sink? 
A block of aluminum or other metal, with veins throughout, that sits on top of the CPU, drawing its heat away.
What is the Frontside Bus?
A set of signal pathways between the CPU and main memory.
A collection of chips or circuits that perform interface and peripheral functions for the processor.
A chipset
The functions of chipsets can be divided into two major functional groups. The _____________ and the ________________.
Northbridge and Southbridge
The __________________ subset is responsible primarily for communications with integrated video using AGP and PCI Ecpress, for instance, and processor-to-memory communications.
What is the backside bus?
A set of signal pathways between the CPU and Level 2 or 3 cache memory. If no backside bus exists, cache is placed on the frontside bus with the CPU and main memory.
What are "local bus technologies?"
The clock signal that drives the FSB is used to drive communications by certain other devices, such as AGP and PCI Express slots
What does the Southbridge do?
Provides support for onboard slower peripherals (PS/2, Parallel, IDE, and so on), managing their communications with the rest of the computer and the resources given to them.
The components supported by the _________ do not need to keep up with the external clock of the CPU and do not represent a bottleneck in the overall performance of the system. 
What does PCI stand for?
Peripheral Component Interconnect
PCI slots can be found in any computer that has a ____________ processor or higher. 
PCI expansion buses operate at ___ or ___MHz over a ____bit channel. 
22 or 66MHz over a 32-bit (4-byte) channel
PCI slots and adapters are manufactured in ____ and ___ volt versions. 
3.3 and 5
What does AGP stand for?
Accelerated Graphics Port
A single communications path in PCIe is called a ________.
How many MB/s is each lane in s PCIe?
250 MB/s
AMR stands for...
Audio/Modem Riser
CNR stands for...
Communications & Networking Riser
PCMCIA stands for...
Personal Computer Memory Card International Association
x of y cards