Similar to how PCI and ISA cards fit into a slot.
Sockets are the square ports that accept a CPU without any card being involved.
The CPU would fit into the socket on the card, and the card adapter would plug into the motherboards socket. The k7m can take CPU's from 500MHz up to 1GHz. However, it was designed for the original Athlon. Net is the opinions of its users. Such opinions may not be accurate and they are to be used at your own risk.