Connectors
ISA family
ISA / EISA / VLB / ASUS MediaBus
Micro Channel (MCA)
PCI family
PCI / PCI Express / AGP
HyperTransport
Function riser family
AMR / CNR / ACR

Storage
ST-412 / ST-506
ATA / ATAPI / IDE / EIDE
S-ATA
SCSI
Floppy Disk
CD-ROM
DVD

CPU / Socket
CPU sockets
Packaging
Voltage

Layout
XT, AT, Baby AT, ATX, ITX ...

RAM sockets

PLL

Power Connector
AT, ATX, WTX ...

Chipset
General
Supported features

Audio
Dolby
MPEG

Graphics
DirectX
OpenGL
Display

Moore's Law
CPU bus protocols (EV6 [Digital alpha, AMD K7], HyperTransport [AMD Opteron], GTL+ [intel PPro, PII], AGTL+ [intel Xeon])