Appendix G - History # https://en.wikipedia.org/wiki/The_Mother_of_All_Demos Adam Savage’s Computer History Collection! (Youtube) Preserving data # https://media.ccc.de/v/31c3_-_6373_-_en_-_saal_6_-_201412291600_-_the_only_thing_we_know_about_cyberspace_is_that_its_640x480_-_olia_lialina#t=3641 Preserving hardware # https://en.wikipedia.org/wiki/Delay_line_memory