NOt the first, but the first one which got more popularity
I believe it was the 4004 by Intel, later the 8008 and then the 8080
The Intel 8080 was the first microprocessor using an 8 bit databus.
The microprocessor used in the first home computer was the 8080. It could handle 8 bits at a time.
8085 is the developed version of 8080. due to the usage of +5v the 8085 was given to the developed version of 8080.
The '8085' in the 8085 microprocessor is the designation given to the microprocessor by Intel. The '5' means it is a single power supply (5 volt) version of the 8080, with enhancements.
the previous CPU of Intel is 8080A. 8085 is the first CPU to work in 5volts. hence the name 8085 (8080+5)
The Altair 8800 is the first microprocessor that I know of that was marketed as a computer. Many other early versions included: Imsai 8080 Franklin Osborn Exidy Commadore Pet The first microprocessor was the Intel 4004, the first computer it was sold in was a development system that Intel called the MCS-4, which stood for MicroComputer System - 4 bits. They also had an MCS-8 about the same time for their 8008 microprocessor.
The two men that designed the MITS Altair 8800 computer kit in 1975 were Ed Roberts and Forrest M. Mims III. The Altair 8800 used the Intel 8080 as it CPU. Roberts and Forrest did not invent the 8080 - Intel did - they simply used the 8080 in their product.
The Altair 8800 used the Intel 8080 microprocessor. Released in 1974, the 8080 was an 8-bit microprocessor that played a significant role in the early personal computer revolution. Its architecture allowed for various applications and contributed to the popularity of the Altair 8800 among hobbyists and early computer enthusiasts.
James Coffron has written: 'Using and troubleshooting the MC68000' -- subject(s): Motorola 68000 (Microprocessor) 'The Commodore 64 connection' -- subject(s): Commodore 64 (Computer), Computer interfaces 'Programming the 8086/8088' -- subject(s): IBM Personal Computer, Intel 8086 (Microprocessor), Intel 8088 (Microprocessor), Programming 'Microprocessor programming, troubleshooting, and interfacing the Z80, 8080, and 8085' -- subject(s): Intel 8080 (Microprocessor), Intel 8085 (Microprocessor), Zilog Z-80 (Microprocessor) 'The VIC-20 connection' -- subject(s): Computer interfaces, VIC 20 (Computer) 'Using and Troubleshooting the Z-8000' -- subject(s): Zilog Z8000 (Microprocessor) 'Proven techniques for troubleshooting the microprocessor and home computer systems' -- subject(s): Maintenance and repair, Microprocessors 'The Apple connection' -- subject(s): Apple computer, Computer interfaces 'Practical hardware details for 8080, 8085, Z80, and 6800 microprocessor systems' -- subject(s): Intel 8080 (Microprocessor), Intel 8085 (Microprocessor), Motorola 6800 (Microprocessor), Zilog Z-80 (Microprocessor)
It was the first Intel 8 bit processor to which followed the 8086, then the 80186, 80286, etc all of which were code compatible and are often referred to simply as x86 family processors.
The 8085 microprocessor was an enhanced version of the 8080, primarily running on a single +5V power supply, hence the designation 8085.The 8086 microprocessor was an enhanced version of the 8085, primarily running as a 16 bit processor, hence the designation 8086.The 8088 microprocessor (part of the 8086/8088 family) was a version of the 8086 that run on an 8 bit bus, hence the designation 8088.