In my line of work as a semiconductor test engineer, pseudo-random binary/bit sequences are very useful. They're random-ish streams of bits that can be easily and reliably reproduced using very simple hardware or software. Any semiconductor that can be used to transmit information can be tested at a functional level with a PRBS. Send a PRBS to the device you're testing, tell the device to repeat it back to you, and compare what you received to what you sent.
In my current role as a design verification engineer, I’m learning Verilog-AMS. I decided to make some notes as I go as a reference for myself. There may be errors in this document; I’m not a Verilog expert. This is just what I’ve gleaned from various online sources.