What does ULA stand for?

Frequently Asked Questions about the Sinclair ZX81
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What does ULA stand for?

Post by TheZuke » Thu Aug 01, 2019 5:27 pm

Since rediscovering the ZX81 family, I was curious what was meant by the ULA integrated circuit.

Well, as they say, GIYF, Wikipedia shows it to mean "Uncommitted Gate Array" or in other words, an IC with a bunch of logic gates that can be configured by connecting (or disconnecting) paths between the various gates such as PALs (Programmable Array Logic).

Anyway here is the link:


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Re: What does ULA stand for?

Post by Bukster » Sun Aug 04, 2019 6:10 am

I think it's Uncommitted Logic Array. So your link was close to the mark.

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