I've heard it called Silicon Prairie, which it was called way back in the 70's and 80's. It does make sense though, since Texas Instruments and various computer

I've heard it called Silicon Prairie, which it was called way back in the 70's and 80's. It does make sense though, since Texas Instruments and various computer companies were based there, which is the same reason Silicon Valley got its name. If anything, Austin is more deserving of the "Silicon X" moniker than the Bay Area, as TI invented the silicon transistor and the integrated circuit.