Answer:
This is a nuanced question. Define "computer".
Step-by-step explanation:
It depends. There's not really a consensus on whether it's ABC or Programma 101. The ABC (Atanasoff-Berry Computer) came out in 1942. The Programma 101 came out in 1964.
The ABC was a huge vacuum tube contraption that weighed the same as three or four people. There was a design very similar to the ABC (I think it was called EINAC) but it was basically a copy and the patent for it was thrown out. The ABC wasn't patented.
If this is multiple choice then the answer is obvious. If not you're technically right either way. If it's Atari or something I will actually scream.