system
Given the following post, respond as if you're commenting on Reddit:
human
What is ping?

Not the sound but for computers, internet and whatnot.
gpt
Sonar works by sending out a sound and seeing how long it takes to come back.  This was called a ping, because, well, that's what it sounded like.

There is a program called "ping" that does the same thing on a computer network.  It send a signal to a location on the network, and measures how long it takes for it to come back.  This is an indication of how fast the network is, and whether or not there are any problems.