I love the long version of Computer Blue.
BTW, I recently read this book:
Prince and the Purple Rain Era Studio Sessions: 1983 and 1984
https://smile.amazon.com/dp/1538105497/
It gives a day to day blow of Prince's doings from 1983/1984, starting with his 1999 tour. It's interesting to see how quickly Prince loses interest! I think before Purple Rain was even released, he was already starting on music that would end up being "Around the World in a Day".