29 years ago next March, the earliest Pentium started to be sold to OEMs. This is one of the rarest, a Socket 4, 5 volt Pentium 60Mhz. They were not widely sold
P4SPA+ SuperMicro Socket mPGA478 Intel 865G Chipset Intel Pentium 4 Processors Support DDR 4x DIMM SATA
Intel Pentium III 0.9GHz Socket 370 OEM CPU SL5BS RB80526PY900256 - Star Micro Inc
200MHz INTEL PENTIUM MMX SL27J Socket 7 CPU | eBay
Amazon.com: Intel Pentium III 1.0GHz 100MHz 256KB Socket 370 CPU : Electronics