SCII - Figure
http://www.atarimania.com/game-atari-400-800-xl-xe-simulated-computer-ii_4681.html

LMC - Figure
http://helios.hud.ac.uk/scomhro/Courses/PostroomComputer/PostroomComputers/PostroomComputer1/img1.gif

Easy4
@book{9780130271020,
  Author = {David Hergert and Nancy Thibeault},
  Title = {PC Architecture from Assembly Language to C},
  Publisher = {Prentice Hall},
  Year = {1998},
  ISBN = {0130271020},
  URL = {http://www.amazon.com/PC-Architecture-Assembly-Language-C/dp/0130271020%3FSubscriptionId%3D0JYN1NVW651KCA56C102%26tag%3Dtechkie-20%26linkCode%3Dxm2%26camp%3D2025%26creative%3D165953%26creativeASIN%3D0130271020}
}

LMC Paper

@INPROCEEDINGS{977496, 
author={Yurcik, W. and Osborne, H.}, 
booktitle={Simulation Conference, 2001. Proceedings of the Winter}, 
title={A crowd of Little Man Computers: visual computer simulator teaching tools}, 
year={2001}, 
month={}, 
volume={2}, 
pages={1632-1639 vol.2}, 
keywords={computer architecture;computer science education;virtual machines;Little Man Computer;computer architecture;computer simulator;students;teaching computer architecture;Assembly;Buildings;Computational modeling;Computer aided manufacturing;Computer architecture;Computer science;Computer simulation;Education;Programming profession;Testing}, 
doi={10.1109/WSC.2001.977496},}

Easy8 Paper

@article{tellezinteractive,
  title={Interactive Applets for Introductory Courses on Computer Architecture},
  author={T{\'e}llez, Alberto Gonz{\'a}lez and Gonz{\'a}lez, Juan Carlos Mart{\'\i}nez}
}

Python

https://www.python.org/

Pygame

http://pygame.org/news.html