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Onboard Mainboard Sockets

Bus Types

Bus Type Bandwidth
AGP 32 bit - 66-533MHz
EISA 32 bit - 8-10MHz
ISA 8/16 bit - 8-10MHz
Microchannel 32 bit - 8-10MHz
PCI 32 bit
VL (VESA)-Bus 32 bit - 40MHz

AGP

EISA Slot

  • 16 bit
  • 5-20MHz speed
  • no longer manufactured

ISA Slot

  • 8/16 bit
  • 8-10MHz speed
  • this was the most common type until the late 1990's
  • no longer manufactured
  • Example 1

    Example 2

    Example 3

MCI Bus

  • IBM 32-bit proprietary
  • limited distribution
  • no longer manufactured

PCI, PCI Express 1, PCI Express 4, PCI Express 16

  • This is the most common type of slot today
  • 32 bit slots

VESA VL Bus

  • This is no longer manufactured
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Last modified: November 7, 2011

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