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The Phalanx XR-12 is a fictitious 1980s computer featured in "Chuck Versus the First Fight", which is actually a Northstar Advantage. It is mocked throughout the episode by Chuck for only accepting its unique triangular floppy discs. Just one XR-12 is known to still be in existence, after the computer located in Stephen Bartowski's Secret Base was destroyed by Alexei Volkoff and Mary Bartowski. This remaining computer is said by Volkoff to be located in London, United Kingdom, under the possession of the British Secret Intelligence Service (MI6).
- The fictitious triangular discs used by the XR-12 are physically impossible in real life, and the drive featured in the episode is a standard 5-1/4" floppy disk drive.
Note: The disks are not physically impossible...yet they would be extremely impractical and an inefficient use of space. The actual disk would have to have a radius less than the length of a line from the geometric center of the triangle to the center point of the closest leg.