[ VENDOR-FIRST CPU TAXONOMY ]
Early Intel processors
Early Intel processor models; bus, clock and package require board matching. Each card opens a model-specific record with specifications, package, caveats and sources.
Intel’s 4004 is a historically important 4-bit CPU introduced in 1971 for the MCS-4 calculator system.
OPEN PART RECORD →PART RECORD // EARLY INTEL PROCESSORSIntel 8080A1974 Intel 8080 family A-grade revision. 8-bit ALU/data bus, 16-bit address bus (64 KB), 2 MHz, 40-pin DIP; external clock/support circuitry.
OPEN PART RECORD →PART RECORD // EARLY INTEL PROCESSORSIntel 8085AIntel 8085 NMOS model introduced 1976. 8-bit CPU, 16-bit address, 3 MHz, 40-pin DIP, single +5 V supply, integrated clock and serial I/O.
OPEN PART RECORD →PART RECORD // EARLY INTEL PROCESSORSIntel 8086Intel 16-bit x86 processor, 1978. This entry records a distinct product or well-defined family; differences among revisions and similarly named models are called out below.
OPEN PART RECORD →PART RECORD // EARLY INTEL PROCESSORSIntel 8088Intel first-generation x86 CPU, 1979. This record describes this specific product, standard, or clearly identified family; it is not a claim that every product sold under a similar name shares these specifications.
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