Power20 VIC-20 emulator for the Mac OS. Shareware, fully functional for 10 minutes until registered. http://www.auto.tuwien.ac.at/~rlieger/Power20/index.html

Pfau Zeh VIC-20 emulator for Win32 and Linux. http://www.classicgaming.com/pfauzeh/

WinEMU A freeware C16/Plus4 emulator for DOS and Win32 platforms. Also contains game cheats and a developer section. http://winemu.emuunlim.com/

Artifex A freeware C16 and Plus/4 emulator for Windows. http://artifex.emuunlim.com/

PCVIC Upgrade your PC to a VIC-20. Runs on MS-DOS, OS/2 or Windows. http://wwwhome.cs.utwente.nl/~schooten/software/pcvic.html

The C16-Plus4 Retro Page Game downloads, computer history, tips and home of YAPE, A freeware C16 and Plus/4 emulator for Windows. An older open source version for Unix/SDL is also available. http://yape.homeserver.hu/

VICE An open source CBM-II, PET, VIC-20, C64, and C128 emulator for BeOS/x86, DOS, Linux, OS/2, Unix, and Windows. http://www.viceteam.org/

Minus4 A freeware Plus/4 emulator for DOS, Java, and Windows. The Source Code for the Windows version is also available. http://javalemmings.com/minus4/

Running Classic Operating Systems with Hercules A presentation at SHARE 97 by Jay Maynard of Global MAINTECH Corp. Looks in detail at OS/360, VM/370 and MVS Version 3.8. [PDF] http://shareweb.share.org/proceedings/sh97/data/S2881.PDF