LISP 2

{{Short description|Abandoned 1960s programming language proposal}}

{{About|a specific Lisp dialect|the use of a separate namespace for functions|Lisp-1 vs. Lisp-2}}

{{Infobox programming language

| name = LISP 2

| logo =

| paradigms = Multi-paradigm: functional, procedural, reflective, meta

| family = Lisp

| designers = R. W. Mitchell, Paul W. Abrahams

| developers = System Development Corporation, Information International, Inc.

| released = {{Start date and age|1960}}

| latest release version = Final

| latest release date = {{Start date and age|1967}}

| discontinued = Yes

| typing = dynamic, strong

| scope = Lexical (static)

| platform = IBM AN/FSQ-32, IBM 360/67, DEC PDP-6

| influenced by = Lisp, ALGOL

| implementations =

| dialects =

}}

LISP 2 is a programming language proposed in the 1960s as the successor to Lisp. It had largely Lisp-like semantics and ALGOL 60-like syntax. It is remembered mostly for its syntax, yet it had many features beyond those of early Lisps.

Early Lisps had many limits, including limited data types and slow numerics. Its use of fully parenthesized notation was also considered a problem. The inventor of Lisp, John McCarthy, expected these issues to be addressed in a later version, called notionally Lisp 2. Hence the name Lisp 1.5 for the successor to the earliest Lisp.McCarthy, 1979

Lisp 2 was a joint project of the System Development Corporation and Information International, Inc., and was intended for the IBM built AN/FSQ-32 military computer. Development later shifted to the IBM 360/67 and the Digital Equipment Corporation PDP-6. The project was eventually abandoned.

Bibliography

{{cite conference|first1=Paul W.|last1=Abrahams|first2=Jeffrey A.|last2=Barnett|first3=Erwin|last3=Book|first4=Donna|last4=Firth|first5=Stanley L.|last5=Kameny|first6=Clark|last6=Weissman|first7=Lowell|last7=Hawkinson|first8=Michael I.|last8=Levin|first9=Robert A.|last9=Saunders|title=The LISP 2 Programming Language and System|book-title=Proceedings of the Fall Joint Computer Conference|date=1966|pages=661–676|url=http://www.softwarepreservation.org/projects/LISP/lisp2/AbrahamsEtAl-LISP2.pdf}}
{{cite tech report|last=Abrahams|first=Paul W.|title=LISP 2 Specifications|institution=System Development Corporation|number=Technical report TM-3417/200/00|location=Santa Monica, Calif.|date=1967|url=http://www.softwarepreservation.org/projects/LISP/lisp2/TM-3417_200_00_LISP2_Lang_Spec.pdf}}
{{cite web|first=John|last=McCarthy|author-link=John McCarthy (computer scientist)|title=History of Lisp|date=12 February 1979|url=http://www-formal.stanford.edu/jmc/history/lisp/lisp.html}}
{{cite tech report|last=Mitchell|first=R.W.|title=LISP 2 Specifications Proposal|institution=Stanford Artificial Intelligence Laboratory|number=Memo No. 21|location=Stanford, Calif.|date=1964|url=http://www.softwarepreservation.org/projects/LISP/stanford/Stanford-AIM-21.pdf}}

References

External links

[http://www.softwarepreservation.org/projects/LISP/lisp2_family#LISP_2_ LISP 2 section of History of LISP at Software Preservation Group]
[https://doi.org/10.1109/MAHC.2018.1221040 Paul McJones. The LISP 2 Project. IEEE Annals of the History of Computing, October-December 2017, pages 85-92.]

Category:Lisp programming language family