Downloading VirtualAGC 1.0 for Mac from our website was free. This free software for Mac OS X was originally produced by Ronald Burkey. VirtualAGC for Mac is included in System Tools.
From the developer:
Virtual AGC is a computer model of the AGC (Apollo Guidance Computer). It does not try to mimic the superficial behavioral characteristics of the AGC, but rather to model the AGC's inner workings. The result is a computer model of the AGC which is itself capable of executing the original Apollo software on a PC. The program also provides an emulated AGS and (in the planning stages) an emulated LVDC.
You may want to check out more software for Mac, such as roami, CernVM Installer or Transterpreter, which might be similar to VirtualAGC.