noun Definition of xt in Technology (computer) An IBM PC with a (slow) hard disk. The XT was released in March 1983. It had an Intel 8088 CPU. The XT/370, released in October 1983, added IBM 370 mainframe emulation, and the XT 286 followed in September 1986 with an Intel 80286 CPU [Why?]. 1
noun Technical meaning of xt The intrinsics of the X Window System Toolkit. 1
