Docker the program

- [Instructor] And now a little interlude…to talk about what kernels do.…Kernels are either part of a corn,…a respectable military rank…or decor of every computer you interact with…depending on your perspective.…So kernel runs directly on the hardware…and it has a bunch of jobs, most of which are pretty simple…and very important.…It receives messages from the hardware,…a new disc has been attached, a network packet arrived,…everything that goes on electrically…bubbles up to the kernel and gets dealt with.…

It starts and it schedules programs.…It says what's allowed to run, what, when…and it lets your computer do all the things…you're asking it to do at the same time.…It controls and it organizes the storage devices…on the computer.…When you say write to this file the kernel says ahh,…when he says write to the file he actually means…this little spot on the disc.…And it goes there and writes the data.…Someone has to make that decision…and that's the role of the file system inside the kernel.…It passes messages between programs.…