TI Explorer

The Texas Instruments Explorer is a family of Lisp machine computers. These computers were sold by Texas Instruments (TI) in the 1980s. The Explorer is based on a design from Lisp Machines Incorporated, which is based on the MIT Lisp machine. The Explorer was used to develop and deploy artificial intelligence software.

Notable is also the early use of the NuBus as the system bus for the Explorer computer family.

## Contents

* 1 History
* 2 Operating system
* 3 Use
* 4 Models
* 5 References
* 6 Publications
* 7 External links

## History

The Explorer was used to develop and deploy artificial intelligence software. Later models were based on a special 32-bit microprocessor[1] developed by TI, which hardware had enhanced support for executing Lisp software.

## Operating system

The operating system of the Explorer was written in Lisp Machine Lisp and also supported Common Lisp.[2]

## Use

A notable application is SPIKE,[3] the scheduling system for the Hubble Space Telescope. SPIKE was developed on Texas Instruments Explorer workstations.

## Models

* Explorer[4]
* Explorer II, based on the Lisp microprocessor
* Explorer LX, which combines the Explorer with a co-processor running a version of Unix (TI System V)
* MicroExplorer, a NuBus board for the Apple Macintosh based on the Lisp microprocessor

## References

1. ↑ Bosshart, Patrick; Hewes, C.; Chang, Mi-Chang; Chau, Kwok-Kit; Hoac, C.; Houston, T.; Kalyan, V.; Lusky, S. et al. (February 1987). "A 553K-Transistor LISP Processor Chip". IEEE Journal of Solid-State Circuits (New York, New York, United States): 202–203. doi:10.1109/ISSCC.1987.1157084. Solid-State Circuits Conference Digest of Technical Papers vol sc-22 issue nr 5
2. ↑ "The Explorer System Software Manuals: Lisp Reference". 1985. http://bitsavers.org/pdf/ti/explorer/2243201-0001_LispRef.pdf.
3. ↑ SPIKE, https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19900017961.pdf , Artificial Intelligence Scheduling for the Hubble Space Telescope, Mark Johnston, Glenn Miller, Jeff Sponsler, Shon Vick, Robert Jackson, Space Telescope Institute
4. ↑ "Official TI Explorer Computer System Brochure". Classic Computer Brochures. 22 September 2014. http://classic.technology/texas-instruments-explorer-computer-system/.

## Publications

* Software innovations for the Texas Instruments Explorer computer, Tennant, H.R.; Bate, R.R.; Corey, S.M.; Davis, L.; Kline, P.; Oren, L.G.; Rajinikanth, M.; Saenz, R.; Stenger, D.; Thompson, C.W., Proceedings of the IEEE Volume 73, Issue 12, Dec. 1985 Page(s): 1771 - 1790
* Artificial intelligence hardware architectures for the Space Station era: The Texas Instruments Explorer and Compact LISP Machine, Krueger, S. ; Manuel, G. ; Matthews, G. ; Ott, G. ; Watkins, C., Opt. Eng. ; Vol/Issue: 25:11
* Dussud, P. H. 1988. Lisp hardware architecture: the Explorer II and beyond. SIGPLAN Lisp Pointers 1, 6 (Apr. 1988), 13–18. http://doi.acm.org/10.1145/1317224.1317226
* P.H. Dussud, TICLOS: An implementation of CLOS for the Explorer Family, In Proc. OOPSLA'89, International Conference on Object-Oriented Programming, Systems, Languages and Applications, 1989, pp. 215–219.
* Zeitgeist: Database Support for Object-Oriented Programming (1988), by S Ford, J Joseph, D Langworthy, D Lively, G Pathak, E Perez, R. Peterson, D. Sparacin, S. Thatte, D. Wells, S. Agarwal, In Proceedings of the Second International Workshop on Object-Oriented Database Systems (Zeitgeist was an OODBMS developed by Texas Instruments for the Explorer)

## External links

* TI MicroExplorer documentation
* TI Explorer documentation
* Texas Instruments history, In search for a market
* TI Explorer Lisp Machine Source Code (1991)
* TI Explorer Lisp Code: The Stanford Knowledge Systems Lab's set of Explorer patches and tools.
* Emulators

* v
* t
* e

Lisp programming language

Features|

* Automatic storage management
* Conditionals
* Dynamic typing
* Higher-order functions
* Linked lists
* M-expressions (deprecated)
* Read–eval–print loop
* Recursion
* S-expressions
* Self-hosting compiler
* Tree data structures

Object systems|

* Common Lisp Object System (CLOS)
* CommonLoops
* Flavors

Implementations|

| Technical
standard(s)
exists|

| Common
Lisp|

* Allegro Common Lisp
* Armed Bear Common Lisp (ABCL)
* CLISP
* Clozure CL
* CMU Common Lisp (CMUCL)
* Corman Common Lisp
* Embeddable Common Lisp (ECL)
* GNU Common Lisp (GCL)
* LispWorks
* Macintosh Common Lisp
* Mocl
* Movitz
* Poplog
* Steel Bank Common Lisp (SBCL)
* Symbolics Common Lisp

|

Scheme|

* History
* Bigloo
* Chez Scheme
* Chicken
* Gambit
* Game Oriented Assembly Lisp (GOAL)
* Ikarus
* JScheme
* Kawa
* Larceny
* MIT/GNU Scheme
* MultiLisp
* Pocket Scheme
* Racket
* RScheme
* Scheme 48
* SCM
* SIOD
* T
* TinyScheme

ISLISP|

* OpenLisp

Nonstandard|

| Logo|

* MSWLogo
* NetLogo
* StarLogo
* UCBLogo

|

* Arc
* AutoLISP
* BBN LISP
* Clojure
* Dylan (Apple, history)
* Emacs Lisp
* EuLisp
* Franz Lisp, PC-LISP
* Hy
* Interlisp
* Knowledge Engineering Environment
* *Lisp
* LeLisp
* LFE
* Lisp Machine Lisp
* Maclisp
* MDL
* MLisp
* newLISP
* NIL
* PC-LISP
* Picolisp
* Portable Standard Lisp
* RPL
* S-1 Lisp
* SKILL
* Spice Lisp
* Zetalisp

Operating system|

* Common Lisp Interface Manager, McCLIM
* Genera
* Scsh

Hardware|

* Lisp machines
* TI Explorer
* Space-cadet keyboard

Community|

| Standards|

* Scheme Requests for Implementation
* Common Lisp HyperSpec
* X3J13

|

Education|

| Books|

* Common Lisp the Language
* How to Design Programs (HTDP)
* On Lisp
* Practical Common Lisp
* Structure and Interpretation of Computer Programs (SICP)

|

Curriculum|

* ProgramByDesign

Organizations|

* Apple Computer
* Bolt, Beranek and Newman
* Harlequin
* Lucid Inc.
* Massachusetts Institute of Technology (MIT)
* MIT Computer Science and Artificial Intelligence Laboratory (CSAIL)
* Stanford Artificial Intelligence Laboratory
* Symbolics
* University of California, Berkeley
* Xanalys

People|

* Edmund Berkeley
* Daniel G. Bobrow
* William Clinger
* R. Kent Dybvig
* Matthias Felleisen
* Robert Bruce Findler
* Matthew Flatt
* Phyllis Fox
* Paul Graham
* Richard Greenblatt
* Timothy P. Hart
* Louis Hodes
* Mike Levin
* David Luckham
* John McCarthy
* Robert Tappan Morris
* Joel Moses
* David Park
* Steve Russell
* Richard Stallman

Common Lisp|

* Scott Fahlman
* Richard P. Gabriel
* Philip Greenspun (10th rule)
* David A. Moon
* Kent Pitman
* Guy L. Steele Jr.
* Daniel Weinreb

Scheme|

* Shriram Krishnamurthi
* Guy L. Steele Jr.
* Gerald Jay Sussman
* Julie Sussman

Logo|

* Hal Abelson
* Denison Bollay
* Wally Feurzeig
* Brian Harvey
* Seymour Papert
* Mitchel Resnick
* Cynthia Solomon

* Category
* Category
* List

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