Charles Ingerham Peddle[2] (November 25, 1937 – December 15, 2019)[3] was an American electrical engineer best known as the main designer of the MOS Technology 6502 microprocessor, the KIM-1 single-board computer, and its successor, the Commodore PET personal computer, both based on the 6502.

[4] Peddle recognized a market for a very low price microprocessor and began to champion such a design to complement the $300 Motorola 6800.

He then left for MOS Technology, where he headed the design of the 650x family of processors; these were made as a $25 answer to the Motorola 6800.

The most famous member of the 650x series was the 6502, developed in 1975, which was priced at 15% of the cost of an Intel 8080, and was subsequently used in many commercial products, including the Apple II, PET, VIC-20, Atari 8-bit computers, arcade video games, Oric computers, and the BBC Micro.

[4][7] The Atari 2600 uses the closely related 6507 CPU, the Commodore 64 uses the also closely related derivative 6510, and the Nintendo Entertainment System uses a custom ASIC which includes an altered 6502 core (with the decimal mode deleted).