PC Floppy Copy Protection: Electronic Arts Interlock

This is Part 3 of a series on PC floppy copy protection methods. Again, I need to thank NewRisingSun and OBattler for their invaluable contributions. You can read the previous installments here: Part 1, covering Formaster Copy-Lock Part 2, covering Softguard Superlok Before Electronic Arts (EA) was the publishing juggernaut that it is today, it was just one of dozens of software publishers putting…