[close04]

The line is pretty blurry. This (relatively) modern device [0] is a computer although it's probably less complex than some of the ancient ones.

[0] https://en.wikipedia.org/wiki/Dumaresq

[adrianN]

Mechanical computers for fire control where the standard solution until very recently. Here's a very interesting video about them: https://www.youtube.com/watch?v=s1i-dnAH9Y4