The "OS Card" would be a independant operating system that is installed or flashed onto a PCI-E card for computers. A entire operating system such as Windows would come on one of these cards. Instead of booting and running your OS from your local hard drive, it would run most of the OS from the PCI-E card. The card would be read only, protecting vital system files from malware such as trojans or viruses. A small number of system files that would require read and write functions...