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A job description or JD is a written narrative that describes the general tasks, or other related duties, and responsibilities of a position. It may specify the functionary to whom the position reports, specifications such as the qualifications or skills needed by the person in the job, information about the equipment, tools and work aids used, working conditions, physical demands, and a ...
Most of their duties are taught on the job, [citation needed] as their job description will vary according to the systems they help to manage. Responsibilities of a computer operator may include: Monitor and control electronic computer and peripheral electronic data processing equipment to process business, scientific, engineering, and other ...
As a unit of execution, a job may be concretely identified with a single process, which may in turn have subprocesses (child processes; the process corresponding to the job being the parent process) which perform the tasks or steps that comprise the work of the job; or with a process group; or with an abstract reference to a process or process ...
Computer programming or coding is the composition of sequences of instructions, called programs, that computers can follow to perform tasks. [1] [2] It involves designing and implementing algorithms, step-by-step specifications of procedures, by writing code in one or more programming languages.
A program specification is the definition of what a computer program is expected to do. It can be informal , in which case it can be considered as a user manual from a developer point of view, or formal , in which case it has a definite meaning defined in mathematical or programmatic terms.
In 1941, German civil engineer Konrad Zuse was the first person to execute a program on a working, program-controlled, electronic computer. [5] From 1943 to 1945, per computer scientist Wolfgang K. Giloi and AI professor Raúl Rojas et al., Zuse created the first, high-level programming language , Plankalkül .
A computer program is a sequence or set [a] of instructions in a programming language for a computer to execute. It is one component of software, which also includes documentation and other intangible components. [1] A computer program in its human-readable form is called source code.
Probably the most well-known is IBM's Job Control Language (JCL). Job schedulers select jobs to run according to a variety of criteria, including priority, memory size, etc. Remote batch is a procedure for submitting batch jobs from remote terminals, often equipped with a punch card reader and a line printer. [4]