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 (" Programming Language One ", pronounced " pee-el-one ") is a procedural, imperative computer programming language designed for scientific, engineering, business and systems programming applications.

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 ” ).

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.

A language is described as block-structured when it has a syntax for enclosing structures between bracketed keywords, such as an if-statement bracketed by as in ALGOL 68, or a code section bracketed by, as in PL / I-or the curly braces of C and many later languages.

One slave system, the phonological loop ( PL ), stores phonological information ( that is, the sound of language ) and prevents its decay by continuously articulating its contents, thereby refreshing the information in a rehearsal loop.

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.

For example if the main target program is written in COBOL but calls assembly language subroutines and PL / 1 subroutines, the debugger may have to dynamically switch modes to accommodate the changes in language as they occur.

The following EBNF-like grammar ( for Niklaus Wirth's PL / 0 programming language, from Algorithms + Data Structures = Programs ) is in LL ( 1 ) form:

* DATABUS programming language ( AKA PL / B )

DR produced a selection of programming language compilers and interpreters for their OS-supported platforms, including C, Pascal, COBOL, Forth, PL / I, PL / M, BASIC, and Logo.

So Meta-IV, was " used to define major portions of " the PL / I programming language.

* The availability of compilers, assemblers, and a Symbolic Debugging System ( SDS ) that allow users to debug programs written in high-level languages such as FORTRAN, Pascal, PL / I, ... as well as in assembly language.

Many CMS users programmed in such languages as COBOL, FORTRAN, PL / I, C / 370, APL, and the scripting language REXX.

Other languages supported in the VS integrated development environment included Assembler, COBOL 74, COBOL 85, BASIC, Ada, RPG II, C, PL / I, FORTRAN, Glossary, MABASIC, SPEED II and Procedure ( a scripting language ).