Conversation so far:
Where did Grace Hopper work?
She worked for the US Navy and the Eckert–Mauchly Computer Corporation.
What was Grace Hopper's title in the NAVY?
Navy rear admiral and senior mathematician at Eckert-Mauchly.
Who was in charge of Hopper in the Navy?
In the navy she served on the Mark I computer programming staff headed by Howard H. Aiken.

Question: What was UNIVAC
Self-contained rewrite: What was UNIVAC