history of software freedom

in the beginning, all users were free
	computers [examples?] came with software
	software source code was shared freely
	companies saw no reason to lock it away or forbid sharing and modification
	something about hackers and the MIT model railroad club?
proprietarization
	mostly through the 1970s
	IBM in 1969[?]
	copyright extended to software
	"Open Letter to Hobbyists"
GNU
FSF
EULAs
	legally-binding contracts
	began as a way to limit warranties and disclaim liability
	in the mid 1980s, became popular in forbidding sharing and modification
Linux
open source, Netscape
something on DRM maybe?
modern EULAs
	limit free speech
	allow developer to change software remotely without notice