The Texas Instruments Explorer is a family of Lisp machine computers.
Notable is also the early use of the NuBus as the system bus for the Explorer computer family.
Later models were based on a special 32-bit microprocessor[1] developed by TI, which hardware had enhanced support for executing Lisp software.
[2] A notable application is SPIKE,[3] the scheduling system for the Hubble Space Telescope.
SPIKE was developed on Texas Instruments Explorer workstations.