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PL/1 Programming language
PL/1 Programming language is a third generation programming language. The first name of the PL/1 Programming language was New Programming Language NPL and then it was changed to PL/1 because it confuses with the National Physical Laboratoryin England. PL/1 Programming language was develop as a alternative to the assembler languages e.g COBOL, FORTRAN. Pl/1 programming language is extensible, for new hardware and new application areas. It is machine-independent and operate effectively across the main hardware and operating system ranges.
The features support by PL/1
- Recursion
- Structured programming
- Linked data structure handling
- Fixed-point
- Floating-point
- Complex
- Character string handling
- Bit string handling
Features of PL/1
- no reserved keywords
- defines it's data types without regard for any hardware
- block-oriented language, consisting of packages, begin blocks, and statement
- contains control structures
- supports arrays, structures, unions, arrays of structures or unions, structures or unions of arrays, and combinations thereof
- four different storage classes: AUTOMATIC, STATIC, CONTROLLED, and BASED
