Exam (elaborations)
PCI Slots-Cards Questions and Answers 2024
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Exam of 2 pages for the course pci at pci (PCI Slots-Cards)
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PCI Slots-CardsPCI Slots/Cards – answer PCI (Peripheral Component Interconnect) standard specifies
a computer bus for attaching peripheral devices to a computer motherboard.
Original PCI bus was 32 bits wide and ran at 33 MHz.
There was a 64 bit version but is quite rare.
PCI - X – answer PCI Extended (PCI-X) is a big enhancement to PCI that is fully
backward compatible in terms of both hardware and software.
PCI-X is a 64-bit wide bus.
The real bonus of PCI-X is its much-enhanced speed in MHz:
-- PCI-X 66 MHz
-- PCI-X 133 MHz
-- PCI-X 266 MHz
-- PCI-X 533 MHz
PCI-X used in SERVERS
PCI Express PCIe - answerPCI Express (PCIe) is an implementation of the PCI
computer bus that uses existing PCI programming concepts, but bases it on a
completely different and much faster serial physical-layer communication protocol.
-- Formerly known as Arapaho or 3GIO for 3rd Generation I/O
--PCI express gives you the fastest graphics
--PCIe transfers data at 2.5 Gbps per lane, 5Gbps in PCIe 2.0, to a maximum of 32
lanes: a total combined transfer rate of a theoretical bandwidth of 320Gbps
-- PCIe bus speeds are 1x, 2x, 4x, 8x, 16x, and 32x
(x is pronounced "by")
miniPCI - answerminiPCI is PCI for the laptops. It is designed to use low power and lie
flat.
AGP (Accelerated Graphics Port) - answerThe Accelerated Graphics Port (also called
Advanced Graphics Port) is a high-speed point-to-point channel for attaching a graphics
card to a computer's motherboard, primarily to assist in the acceleration of 3D computer
graphics.
Some motherboards have been built with multiple independent AGP slots.
AGP is slowly being phased out in favor of PCI Express PCIe.
AGP (Accelerated Graphics Port) Speed Multipliers - answer--AGP 1x, using a 32-bit
channel operating at 66 MHz result in in a maximum data rate of 266 megabytes per
second (MB/s), doubled from the 133 MHz MB/s transfer rate of PCI buss 33 MHz / 32-
bit; 3.3 V signaling.
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