Introduction and Processor Support
This was introduced by Intel in 1997 for use with its pentium II, pentium 3, and celeron. The Slot 1 interface was only used by Intel chips because Intel never sold the rights to any other company. This forced the other processor manufacturers to think of other solutions. This was the main reason why AMD was forced to create the Super Socket7 interface.

Features
It features 242 connections in a slot pattern, which is known as the SC242 connector. The slot design was to allow the processor to be inserted as part of a cartridge, called a Single Edge Contact Cartridge, or SECC for short. Although this increased manufacturing costs, the SECC was able to hold L2 cache, up to 512k. This was a good design because it allowed the L2 cache to reside off of the motherboard, like how it was with the Socket7 interface. This meant that like the Socket8 interface, the L2 cache could be situated on a backside bus, with dedicated bandwidth to the CPU. Unlike the Pentium Pro, the L2 cache was not able to operate at full processor speed, because it was too far from the processor. Once manufacturing processes improved and L2 cache was able to be made on-die, the Slot 1 interface was slowly replaced to save money.

Chipsets
The slot 1 interface was able to support up to 2 processors with a compatible chipset. All chipsets used with the Slot 1 interface are also compatible with

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Chipset History & Socket 7 | Super7 & Socket 8 | Slot 1 | Slot2, Socket370, SlotA, & SocketA