What is the function of job control language?

Job Control Language (JCL) is a name for scripting languages used on IBM mainframe operating systems to instruct the system on how to run a batch job or start a subsystem.

What is job control in operating system?

In computing job control refers to the control of multiple tasks or jobs on a computer system, ensuring that they each have access to adequate resources to perform correctly, that competition for limited resources does not cause a deadlock where two or more jobs are unable to complete, resolving such situations where …

Why do we use JCL?

Job Control Language (JCL) is the command language of Multiple Virtual Storage (MVS), which is the commonly used Operating System in the IBM Mainframe computers. In mainframe environment, programs can be executed in batch and online modes. JCL is used for submitting a program for execution in batch mode.

What is the full form of CICS?

CICS® stands for “Customer Information Control System.” It is a general-purpose transaction processing subsystem for the z/OS® operating system.

What is COBOL stand for?

Common Business-Oriented Language
COBOL, in full Common Business-Oriented Language, high-level computer programming language, one of the first widely used languages and for many years the most popular language in the business community.

What is the command language in operating system?

A command language is a language for job control in computing. It is a domain-specific and interpreted language; common examples of a command language are shell or batch programming languages.

What is Job Control Language (JCL)?

What Does Job Control Language (JCL) Mean? Job control language (JCL) is a scripting language executed on an IBM mainframe operating system. It consists of control statements that designate a specific job for the operating system. JCL provides a means of communication between the application program, operating system and system hardware.

What is JCL in computer programming?

Job Control Language (JCL) is a scripting language that describe jobs, to the Operating System that runs in the IBM large server (Mainframe) computers. JCL acts as an interface between your application programs (COBOL, PL/1 , Assembler etc) and Mainframe OS (MVS or Z/OS).

What is the difference between IBM job control and Jes?

There are two distinct IBM Job Control languages: the other for the lineage from OS/360 to z/OS, the latter now including JES extensions, Job Entry Control Language (JECL). They share some basic syntax rules and a few basic concepts, but are otherwise very different.

What are the different types of control statements in JCL?

However, the general concepts are quite simple, and most jobs can be run using a very small subset of these control statements. All jobs require the three main types of JCL statements: JOB, EXEC, and DD. JOB statement – It should be the first statement in the JCL. It indicates accounting information and JOB related information to the system.