PSL meaning in Computing ?

Answer:

What is Portable Standard Lisp mean?

Portable Standard Lisp (PSL) is a programming language, a dialect of the language Lisp. PSL was inspired by its predecessor, Standard Lisp and the Portable Lisp Compiler. It is tail-recursive, late binding (or dynamically bound), and was developed by researchers at the University of Utah in 1980, which released PSL 3.1; development was handed over to developers at Hewlett-Packard in 1982 who released PSL 3.3 and up. Portable Standard Lisp was available as a kit containing a screen editor, a compiler, and an interpreter for several hardware and operating system computing platforms, including Motorola 68000 series, DECSYSTEM-20s, Cray-1s, VAX, and many others. Today, PSL is mainly developed by and available from Konrad-Zuse-Zentrum für Informationstechnik Berlin (ZIB). Its main modern use is as the underlying language for implementations of Reduce.

Like most older Lisps, in the first step, PSL compiles Lisp code to LAP code, which is another cross-platform language. However, where older lisps mostly compiled LAP directly to assembly language or some architecture dependent intermediate, PSL compiles the LAP to C code, which would run in a virtual machine language; so programs written in it are as portable as C in principle, which is very portable. The compiler was written in PSL or a more primitive dialect named System Lisp or SYSLISP as "... an experiment in writing a production-quality Lisp in Lisp itself as much as possible, with only minor amounts of code written by hand in assembly language or other systems languages." so the whole ensemble could bootstrap itself, and improvements to the compiler improved the compiler. Some later releases had a compatibility package for Common Lisp, but this is not sustained in the modern versions.

reference

Full Form	Category
Patrol Script Language	Academic & Science
Paris Sciences et Lettres	Academic & Science
Physics Soccer League	Academic & Science
Perceptual Science Lab	Academic & Science
Physical Sciences Lab	Academic & Science
Priority Sector Lending	Business
Products and Services Listing	Business
Psychometric Services, LTD.	Business
Photonstar Led	Business
Pressure switch Low	Business
Preferred Suppliers List	Business
Parallel Stand Lumber	Community
Problem Solving Leadership	Community
Public Safety Leadership	Community
Property Specification Language	Computer Hardware
Permanent Seat License	Computing
Public Software Library	Computing
Public Source License	Computing
Protected Services List	Computing
Process Specification Language	Computing
Parallel Systems Laboratory	Computing
Physical Security Layer	Computing
Platform Support Layer	Computing
Portable Sound Library	Computing
Plib Scripting Language	Computing
Portable Standard Lisp	Computing
Protocol Stack Layer	Computing
Protected Server Library	Computing
Parallel Simulation Language	Computing
Pastel	Cryptocurrency
Polystyrene Latex	Electronics
Porous Silicon Layer	Electronics
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Pumpkin Spice Latte	General
Pumpkin Saint Laurent	General
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Pumpkin Squirrel Latte	General
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Product Specification Levels	General
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Please Stop Losing	General
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Probabilistic Soft Logic	General
Pumpkin Spice Leather	General
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Posted Speed Limit	General
Permanent Speed Limit	General
Pto Seal	General
Parking Spot Locator	General
Porsche Scene Live	General
Position Speed Look	General
Port St Lucie	General
Party for Socialism and Liberation	General
Power Standards Lab	General
Philly Startup Leaders	General
PLUMB SQUARE and LEVEL	General
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Paula Sands	General
Professional Submission League	General
Port Saint Lucie	General
Polskie Stronnictwo Ludowe	General
Pumpkin Spiced Latte	General
Pumpkin Spice Lattes	General
Passenger Service License	Governmental
PARISAL	Indian Railway Station
Polyhedral Structures Laboratory	Medical
Propulsion Systems Laboratory	Medical
Physical Science Laboratory	Medical
Problem Statement Language	Military and Defence
Parallel Track Single-unit Long-range Aid To Navigation (loran)	Military and Defence
Permanant Seat License	Networking
PSL Limited	NSE Company Symbol
Parallel Strand Lumber	Real Estate
Peabody Short Line (Canadian National Railways)	Regional
Perth, Scotland	Regional
Personal Seat License	Softwares
Perpendicular To The Sun Line	Space Science
Pressure Seal	Space Science
Propellant Seal	Space Science
Pakistan Super League	Sports
Pittsburgh Sports League	Sports
Philadelphia Sports Leagues	Sports
Philly Sports Leagues	Sports
Premier Soccer League	Sports
Personal Stop Loss	Stock Exchange