First in computer engineering is almost always a controversial topic. Historically, many products were often designed around the same time by different organizations and were introduced around the same time. Below is a list of "firsts".

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First CMOS Microprocessor

The first CMOS microprocessor is the 8-bit RCA 1802 introduced in 1974.

First N-bit Microprocessor

Title	Year	Designer	Processor	Note
First 4-bit Microprocessor	1971	Intel	4004
		Fairchild	PPS-25
First 8-bit Microprocessor	1971/2	Intel	8008
		TI	TMX1795	Never commercialized.
First 16-bit Microprocessor	1973	National	IMP-16
First 32-bit Microprocessor	1979	Bell Labs	Bellmac-32	Never commercialized.
	1981	Intel	APX 432
First 64-bit Microprocessor	1991	MIPS Technologies	R4000

First Dual-Core

Original COP2440 Block Diagram

The first known example of a commercial dual-core microprocessor is the COP II COP2404 (and 2440/41/42 variants) announced in 1981 and released the following year. The chip was a complete a single-chip dual-core processor.

First Neural Processor

The first commercial analog neural processor is the ETANN introduced by Intel. Below is a number of candidates for first commercial (digital/analog):

• Intel ETANN
• Fujitsu TDM Neurochip
• Micro Devices MD-1220
• American NeuraLogix NLX-420