Fun historical note, IBM generated cash in its early days as Google and Apple do today, it bought a lot of real estate all around the world. In the 90's when it seemed liked it was doomed, it "saved itself" by selling off big chunks of that real estate. That gave the company operating capital without having to go to the equity markets or debt markets.
Given the ups and downs of tech, it seems like a much better place to hold your spare cash than t-bills or other cash equivalent securities.