- Adventure, developed by Warren Robinett for the Atari Video Computer System (later renamed Atari 2600) and released in 1980, is notable for containing the first well-known Easter egg in a video game, which revealed the designer’s name.
- Intel 4004 (Wikipedia)
The Intel 4004 is a 4-bit central processing unit (CPU) released by Intel Corporation in 1971. Sold for US$60 (equivalent to $450 in 2023), it was the first commercially produced microprocessor, and the first in a long line of Intel CPUs.