. "The TX-0, for Transistorized Experimental computer zero, but affectionately referred to as tixo (pronounced \"tix oh\"), was an early fully transistorized computer and contained a then-huge 64K of 18-bit words of magnetic core memory. The TX-0 was built in 1955 and went online in 1956 and was used continually through the 1960s at MIT."@en . .