Is there any way to install an operating system, without an external device such as USB, DVD, CD, or etc.?

Ok, I have a slightly old comp. but, its ok...but, i have windows ME which is out dated and obsolete because not many things work on it any more......i know stuff like XP will work on it cause ive had it on here before, it just got deleted the last time i got this damn comp. fixed but, anyways........i don't have a cd, or dvd at the moment and i was wondering if there was anyways that i can install something like, ubuntu a version of linux onto my computer without an external device. or is it impossible? i really, kinda wanna replace Windows ME cause it kinda sucks........so if u have any suggestions other than that thatll work to do yea...