Programming Languages Directory

Site Topics

C Programming Language
Assembling Computers
CIS
Computer Science Careers
Women and Computer Science
ADA Programming Language
ALGOL Programming Language
APL Programming Language
AWK Programming Language
Basic Programming Language
C++ Programming Language
COBOL Programming Language
Delphi Programming Language
Eiffel Programming Language
Euphoria Programming Language
Forth Programming Language
FORTRAN Programming Language
HTML Programming Language
ICON Programming Language
Java Programming Language
Javascript Programming Language
LISP Programming Language

 

The ADA Programming Language

Free resources updated everyday:

XXXLINKSXX

The Ada language is the result of the most extensive and most expensive language design effort ever undertaken. Up until 1974 half of the applications at The Department of Defense were embedded systems. An embedded system is one where the computer hardware is embedded in the device it controls. More than 450 programming languages were used to implement different DoD projects, and none of them were standardized. Because of this, software was rarely reused. For these reasons, the Army, Navy, and Air Force proposed to develop a high-level language for embedded systems.

By 1977, a complete language design specification for Ada was created. In April 1977, four proposing contractors were chosen to produce Phase I of the language design. In February 1977, Phase I of the language design was complete. Following this, was a two month evaluation period where 400 volunteers in 80 teams chose two out of the four as being the best language designs. These two companies were then given the go ahead to produce Phase II of the project. At the end of Phase II, another two month evaluation period took place.

In May of 1979 the Cii Honeywell/Bull (the only foreign contractor) language design was chosen as the winner. Phase III of the project began after the winner was selected. After a winner was selected, the language design was published by the ACM.

In November 1979, over 500 language reports were received from 15 different countries. Most of the reports suggested minor changes in the design, none real drastic. Based on these suggestions, a revised language design was published in February of 1980. After some minor changes to this document over the next few years, the final official version of the language was settled upon. The Ada language was then frozen for the next five years.

Significant Language Features

  • Packages- Data types, data objects, and procedure specifications can be encapsulated into a package. This supports the program design of data abstraction.
  • Exception Handling- Ada has very good exception handling capabilities which allow the program to handle its own run-time errors.
  • Generic Program Units- It is possible to write a procedure (for example, a sorting procedure) which does not require a data type to be specified.
  • Parallel / Concurrent Processing- Ada supports parallel and concurrent execution of tasks.
  • Ada 95 Will Add:
  • Support for object-oriented programming
  • More flexible libraries
  • Better control mechanisms for shared data

Areas of Application

  • Government (Department of Defense)
  • Banking systems
  • Commercial aviation
  • Communications systems
  • Computer-Aided Design
  • Manufacturing

Sample Program:

Source Code:

with Text_To; use Text_To
procedure hello is
begin
put("Hello World");
end hello
Sample Run: Hello World

This program simply demonstrates the return of a string from a procedure call, in the Ada programming language. The program will display the message "Hello world" each time the procedure HELLO is called.

The program was compiled using SMALLADA for DOS.

 

 

 

Site Topics

LOGO Programming Language
Mathematica Programming Language
MATLAB Programming Language
Miranda Programming Language
Modula-2 Programming Language
Oberon Programming Language
Pascal Programming Language
PERL Programming Language
PL/I Programming Language
Prolog Programming Language
Python Programming Language
REXX Programming Language
SAS Programming Language
Scheme Programming Language
SED Programming Language
Simula Programming Language
Smalltalk Programming Language
SNOBOL Programming Language
Database Programming Language
Visual Basic Programming Language
Visual C++ Programming Language
XML Programming Language

 

 

 

 

C Programming Language | Assembling Computers | CIS | Computer Science Careers | Women and Computer Science | ADA Programming Language | ALGOL Programming Language | AWK Programming Language | Basic Programming Language | C++ Programming Language | COBOL Programming Language | Delphi Programming Language | Eiffel Programming Language | Euphoria Programming Language | Forth Programming Language | FORTRAN Programming Language | HTML Programming Language | ICON Programming Language | Java Programming Language | Javascript Programming Language | LISP Programming Language | LOGO Programming Language | Mathematica Programming Language | MATLAB Programming Language | Miranda Programming Language | Modula-2 Programming Language | Oberon Programming Language | Pascal Programming Language | PERL Programming Language | PL/I Programming Language | Prolog Programming Language | Python Programming Language | REXX Programming Language | SAS Programming Language | Scheme Programming Language | SED Programming Language | Simula Programming Language | Smalltalk Programming Language | SNOBOL Programming Language | Database Programming Language | Visual Basic Programming Language | Visual C++ Programming Language | XML Programming Language | Home | Site Map