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IBM System/3 BASIC was an interpreter for the BASIC programming language for the IBM System/34 midrange computer. [1]System/34 BASIC was first offered in 1978, and as such, contained many of the trappings that a BASIC program would have encountered in the time period of the TRS-80, or many other offerings of the 1970s and early 1980s. [2]
At the same time, IBM's field support team was expanded and a significant effort was underway to make the software available to IBM customers as a Field Developed Program or FDP. An FDP was a step up in the IBM software hierarchy but still had the caveat of an “as is” package with minimal formal IBM support.
As it is an assembly language, BAL uses the native instruction set of the IBM mainframe architecture on which it runs, System/360, just as the successors to BAL use the native instruction sets of the IBM mainframe architectures on which they run, including System/360, System/370, System/370-XA, ESA/370, ESA/390, and z/Architecture.
Name Description HED: Heading: Separates programs, possibly written separately, which are being assembled together. It can specify a character to be appended to symbol names in this section to avoid naming conflicts. REL: Relocatable Library Program: Defines the start of a relocatable library program being assembled ahead of the main program.
IEFBR14 was created because while DD statements can create or delete files easily, they cannot do so without a program to be run due to a certain peculiarity of the Job Management system, which always requires that the Initiator actually execute a program, even if that program is effectively a null statement. [2]
The Control Language (CL) is a scripting language originally created by IBM for the System/38 Control Program Facility [1] and later used in OS/400 (now known as IBM i). It bears a resemblance to the IBM Job Control Language and consists of a set of command objects (*CMD) used to invoke traditional programs or get help on what those programs do.
IBM offers several no charge tools to work with and read BookManager documents including a reader/viewer called IBM Softcopy Reader. [30] An independent developer, Ken Bowling, created and released software that uses IBM's BookManager code libraries to convert BookManager documents to PDF.
An early version was called Structured Programming Facility (SPF) and introduced in SVS and MVS systems in 1974. [4] IBM chose the name because SPF was introduced about the same time as structured programming concepts. In 1979 IBM introduced a new version and a compatible product for CMS [5] under Virtual Machine Facility/370 Release 5.