The shell
The operating system is the Main program that runs the applications. Think of you as the "operator" of the car, and the car is the application. You control the car to go.
types of operating system
The operator's wrist
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A production operator is also known as a chemical equipment operator. His responsibilities include operating equipment that controls chemical reactions during the processing of various products for sale.
An operating system is nothing more than a program that performs basic requests of the operator. It loads other applications, oversees disk and other I/O operations and frees memory and other resources when an application exits.
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the operator
Simply put, the operating system is a set of software code assembled to have the hardware of a computer performing a series of basic tasks that, working in conjunction, will provide the many functions of the computing process, like reading a record from a disk, checking a field, opening a file, sending an instruction to a printer, etc.. It is normally written in a specific programming language, which relates to the low-level code required by the machine to be understood. An application software is a piece of code that runs on top of the operating system, collecting inputs from an operator/user, submitting these data to its internal rules for processing and delivering the corresponding results to an I/O (input/output) device - a monitor, a printer, a CD-recorder, etc.. It is normally written in a high-level language, familiar to programmers and offering several aids to make the programming easier. Several application softwares can be contained in a single computer and are activated every time a specific process is to be performed. Application software needs an operating system to have the machine running, because it sends its commands (open, write, read, close) to it expecting that they will be performed in that order, and that the operating system will return the information after being processed. In fact, the application software uses the operating system as an interface between itself and the hardware, to have specific jobs performed and results delivered.
The cast of Operator - 2009 includes: Matthew Calver as Man
Anywhere from $65000p/a to $130000 p/a depending on who you work for, which mine you are operating out of, how large the dump truck you are operating is.