Batch, Interactive, Real Time processing systems.

Batch:

A Batch operating system focuses on completing lots of jobs without the need of a user’s interference. This is useful in many different work environments because it processes an input and delivers an output for the user without their input being needed. For example, a restaurant may have an inventory stored in the system, the system will work out how much stock is being used from the data and may print off a sheet with a list of items that need replacing and the quantities.

This works in a system because the jobs consist of data files that are inputted but then later processed by the computer to create an outcome.

Interactive:

Interactive operating systems work as said, they allow users to interact directly with them in order to complete one or more tasks. The user interface allows the user to complete these interactions, this can be the likes of completing tasks or adding data. An example of an interactive operating system is Microsoft Word, this allows you to interactive with the document and insert such things as text and images.

Real time:

Real time operating systems are often known as embedded computers, this is because they are advanced in handling real time data inputs. The real time operating system will pick up data inputs on a real time scale meaning that information will be processed and outputted as it is received. An example of this would be the mars rover, the mars rover can receive data at any time and as it is received it is processed and outputted in a guaranteed time. This could be as few as seconds from the time the data is received by the mars rover. Some programmers however are able to process the data that comes in during a real time situation, for example major or important information can be prioritised, and this is called Priority interrupts.