*[https://www.seasip.info/AmstradXT/index.html Amstrad XT Pages] [https://www.seasip.info/VintagePC/index.html Vintage PCs]
*[https://www.seasip.info/AmstradXT/1512tech/index.html PC1512] [https://www.seasip.info/AmstradXT/1640tech/index.html PC1640] [https://www.seasip.info/AmstradXT/ppctech/index.html PPC] Amstrad technical reference manuals
*[https://www.seasip.info/VintagePC/cga.html Color Graphics Adapter: Notes]
*[https://youtu.be/ZntnK09m1yU Amstrad PC demonstration GEM 16 Colors CGA graphics]
*[https://youtu.be/re40EEKHAqU Amstrad PC1512 Retrospective] [https://youtu.be/a7KRAg61zEk Amstrad Integra Compaq Clone] by [[Nostalgia Nerd]]
*[https://youtu.be/rv-RS4U33ak Amstrad PPC640 System Review] by [[ChinnyVision]]
*[https://www.seasip.info/VintagePC/cga.html Color Graphics Adapter: Notes]
*[https://youtu.be/ZntnK09m1yU Amstrad PC demonstration GEM 16 Colors CGA graphics]
*[https://youtu.be/niKblgZupOc CGA Graphics - Not as bad as you thought] by [[The 8-Bit Guy]]
*[https://int10h.org/blog/2015/04/cga-in-1024-colors-new-mode-illustrated/ CGA in 1024 colors: the illustrated guide]
*[https://int10h.org/blog/2023/07/martypc-pc-xt-emulator-raising-the-bar/ Raising the bar for IBM PC/XT emulation: MartyPC]
*[https://lennartb.home.xs4all.nl/coreboot/col2.html A brief history of the PC platform from 1981 to 2011]
*[https://devtidbits.com/2008/04/26/dosbox-sound-emulation/ DOSBox sound emulation]
*[https://wiki.osdev.org/Expanded_Main_Page OSDev Wiki] [https://www.seasip.info/Gem/ Intel GEM]
*[https://archive.org/details/The_Undocumented_PC_Second_Edition_Frankvan_Gilluwe/ The Undocumented PC] A Programmer’s Guide to I/O, CPUs, and Fixed Memory Areas
*[https://int10h.org/blog/2023/07/martypc-pc-xt-emulator-raising-the-bar/ Raising the bar for IBM PC/XT emulation: MartyPC]
*[https://int10h.org/blog/2015/04/cga-in-1024-colors-new-mode-illustrated/ CGA in 1024 colors: the illustrated guide]
*[https://youtu.be/niKblgZupOc CGA Graphics - Not as bad as you thought] by [[The 8-Bit Guy]]
*[https://youtu.be/urBkxpwz69Q The PicoMEM, one card to rule them all]
*[https://www.nand2tetris.org/ From Nand to Tetris] [https://github.com/jherskow/nand2tetris/blob/master/nand2tetris%20BOOK.pdf The elements of computing systems ebook]