First hit on DL.com's search engine for "computer" states:
https://www.delta.com/traveling_chec...ters/index.jsp

However, I remember recently reading that a computer would be allowed, but Delta explicitly disavows any liability should it be destroyed en route. I can't find the link; maybe I was reading the contract of carriage PDF...

I am checking a computer on my flight on Friday, and I will let you know if they throw up a fuss