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Electronic Associates, Inc. (EAI)

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Electronic Associates, Inc. (EAI) was a major analog computing company during the 1950s and 1960s. At one point EAI became the largest supplier of general-purpose analog computers. During the later 1960s into the 1970s they attempted to transition into hybrid computer. EAI's hybrid computers were still in wide-spread use well into the 1980s. On 07/03/1992 EAI was renamed EA industries Inc. EAI filed for bankruptcy on 06/02/1999, most of the assets were sold to a variety of other firms.[1]

Analog computers

By the early 60s, over 70% of all precision general purpose analog computers were designed and built by EAI.

Hybrid computers

EAI called their hybrid systems HYDAC which was short for Hybrid Digital/Analog computer.



  1. "SEC EDGAR Submission 0000950115-99-000866". Retrieved 12 1, 2015, from