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PL and /
Much of the AIX v2 kernel was written in the PL / I programming language, which proved troublesome during the migration to AIX v3.
When Marinchip Software Partners ( later known as Autodesk ) formed, the founders decided to re-code Interact in C and PL / 1.
In the end, the PL / 1 version was unsuccessful.
There is third party support for PL / SQL in Berkeley DB via a commercial product named Metatranz StepSqlite.
With Dhrystone, Weicker gathered meta-data from a broad range of software, including programs written in FORTRAN, PL / 1, SAL, ALGOL 68, and Pascal.
* PL / SQL
Intel lent him systems using the 8008 and 8080 processors, and in 1973, he developed the first high-level programming language for microprocessors, called PL / M.
He demonstrated CP / M to Intel, but Intel had little interest and chose to market PL / M instead.
Dorothy might have believed that the company could not deliver CP / M-86 on IBM's proposed schedule, as the company was busy developing an implementation of the PL / I programming language for Data General.
Instructions directly supporting nested ALGOL-family languages such as Pascal and PL / M were also added.
The MVS core was almost entirely written in Assembler XF, although a few modules were written in PL / S, but not the performance-sensitive ones, in particular not the Input / Output Supervisor ( IOS ).
It was written PL / 1 by Honeywell for the Multics operating system and first sold in June 1976.
Macros in the PL / I language are written in a subset of PL / I itself: the compiler executes " preprocessor statements " at compilation time, and the output of this execution forms part of the code that is compiled.
He designed the simple programming language PL / 0 to illustrate compiler design.
* PL / I ( NPL ) was designed in the early 1960s to incorporate the best ideas from FORTRAN and COBOL.
Modula-2, Ada, and ML all developed notable module systems in the 1980s, although other languages, such as PL / I, already had extensive support for modular programming.
PL / I's principal domains are data processing, numerical computation, scientific computing, and systems programming ; it supports recursion, structured programming, linked data structure handling, fixed-point, floating-point, complex, character string handling, and bit string handling.
replaced briefly by MPPL ( MultiPurpose Programming Language ) and, in 1965, with PL / I ( with a Roman numeral “ I ” ).

PL and I
PL / I language was vested initially in the New York Programming Center and later at the IBM UK Laboratory at Hursley.
language and had a role in IBM ’ s process for controlling the language through their PL / I Projects.
The experience of defining such a large language showed the need for a formal definition of PL / I.
The language was first specified in detail in the manual “ PL / I Language Specifications.
written in New York from 1965 and superseded by “ PL / I Language Specifications.
IBM continued to develop PL / I in the late sixties and early seventies,
The Standard for PL / I was approved in 1976.
The additional goals for PL / I were:
To meet these goals PL / I borrowed ideas from contemporary languages while adding substantial new capabilities and casting it with a distinctive concise and readable syntax.
PL / I passes Donald Knuth's man or boy test.
New attributes, statements and statement options could be added to PL / I without invalidating existing programs.
The summary is extracted from ANSI PL / I Standard.
and the ANSI PL / I General-Purpose Subset Standard < Ref name =" SubsetG " />.
A PL / I program consists of a set of procedures, each of which is written as a sequence of statements.

PL and ("
* 1980: Comprehensive Environmental Response, Compensation, and Liability Act (" Superfund ") PL 96-510
* 2002: Small Business Liability Relief and Brownfields Revitalization Act (" Brownfields Law ") PL 107-118
* PL / I (" Programming Language One ")
The meta-language actually adopted (" Meta-IV ") is used to define major portions of PL / 1 ( as given in ECMA 74-interestingly a " formal standards document written as an abstract interpreter ") in BEKIČ 74 .»
On December 18, 1991 a range of five high speed rail corridors were authorized (" Intermodal Surface Transportation Efficiency Act of 1991 ( ISTEA ) ( PL 102-240 )") including the Northeast Corridor.
There are also a number of abbreviations and notations used exclusively or almost exclusively in handbell music: LV (" laissez vibrer " or " let vibrate ," similar to a piano's sustain pedal ); R (" ring ," regular ringing or meaning to end the LV ); SK (" shake ," i. e. shaking the bell continuously during the duration of the note ); TD (" thumb damp " — ringing the bell with a thumb on the casting to create a staccato note ); PL (" pluck ," which means to throw down the clapper while the bell lies on the table ); a small, solid triangle (" martellato " — to strike bell against padding of the table, pushing the casting firmly against padding as to quickly dampen sound ); SW (" swing " — to play the bell in a normal position, swing it down to the waist, then bring it back up ); BD (" brush damp ," brushing the rim of the bell against the ringer's chest to cause a quick diminuendo ); and an upward arrow, usually with a curve at the bottom (" echo ," — ringing the bell and then touching it very briefly to the table, creating an echo effect ).

PL and Programming
Programming languages available for the AS / 400 include RPG, assembly language, C, C ++, Pascal, Java, EGL, Perl, Smalltalk, COBOL, SQL, BASIC, PHP, PL / I, Python and REXX.
* PL / I ( Programming Language One )-a hybrid commercial / scientific general purpose language supporting pointers.
A classic work on the subject was The Elements of Programming Style, written in the 1970s, and illustrated with examples from the Fortran and PL / I languages prevalent at the time.
* New Programming language – the original name of the PL / I by IBM in 1964
* F. J. Corbató, PL / I As a Tool for System Programming ( Datamation, May 6 1969 )
Programming Language for Business or PL / B is a business-oriented programming language originally called DATABUS and designed by Datapoint in the early 1970s as an alternative to COBOL because Datapoint's 8-bit computers could not fit COBOL into their limited memory, and because COBOL did not at the time have facilities to deal with Datapoint's built-in keyboard and screen.
PL / M-80 Programming Manual.
A Guide to PL / M Programming for Microcomputer Applications.
* PL / I ( Programming Language I ), a block-structured computer language, is created by George Radin, while at IBM.
* Programming languages — PL / I, COBOL, Fortran, C, RPG and REXX.
* Richard C. Holt, " Teaching the Fatal Disease ( or ) Introductory Computer Programming Using PL / I ", ACM SIGPLAN Notices 8, 5 ( May 1973 )
PL / S, short for Programming Language / Systems, is a " machine-oriented " programming language based on PL / I.
PL / S was succeeded by PL / S II and PL / AS ( Programming Language / Advanced Systems ), and then PL / X ( Programming Language / Cross Systems ).

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