< hardware , standard > The physical and electrical specification for the connector used by some of Intel 's microprocessor cards, currently (August 1999) the SEPP Celeron and the SECC Pentium II .
Slot 1 is a departure from the square ZIF PGA / SPGA sockets used by Pentium and earlier processors, the processor being mounted on a card, with a 242-lead edge-connector.
The Slot 1 specification allows for higher bus rates than Socket 7 . Slot 1 motherboards use the GTL+ bus protocol .
See also Slot 2 , Slot A .
[bus rates?]
(1999-08-04)