HP 3000 Manuals HP 3000 Manuals
Chapter 1 Introduction to Transact Transact is a high-level programming language used to develop transaction processing applications. Designed as a procedural language, Transact combines the functionality of a third generation language, such as COBOL or Pascal, with a comprehensive set of powerful, high-level constructs that can perform several functions within a single statement. Applications written in Transact require far fewer lines of code than those written in traditional third generation languages. They are not only easier to write they are also easier to understand and maintain. The result is significantly lower development and maintenance costs. Transact/V is a compiler and intermediate code interpreter that runs on MPE V-based HP 3000 systems. Transact/iX runs on MPE/iX systems. Included in Transact/iX are the Transact/iX compiler that generates native mode object code as well as the Transact/V compiler and interpreter. Programmers can quickly port their applications written in Transact/V to MPE/iX systems. Transact/V applications can be run on MPE/iX systems in compatibility mode. Improved performance can be achieved by compiling your application in native mode. Unlike Transact/V interpreted statements, native mode compiled Transact programs provide the user with a performance level comparable to that of traditional third generation languages such as COBOL and Pascal.