bit per second

https://getbytepetabytemedia.focalledger.com/posts/understanding-digital-storage-from-byte-to-petabyte

Bit per second is the most basic unit for measuring data transfer speed, like how many tiny binary ones and zeros can travel from one place to another each second. When your internet connection is rated at, say, 50 million bits per second, that's how much raw data can flow through the pipe in that time. It's the raw ingredient behind everything from streaming a video to loading a web page.