Types of Operating System

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Types of Operating System
An operating system is a collected of software which runs the hardware connected
to or in the system. Application programs require an operating system to be able
to run. Operating systems can be found on almost any computer from cellular
mobile communications devices, Video games consoles, Internet servers, and
home computers. Some modern popular operating systems include iOS, Android,
Windows, Linux, Red Hat, Mac OS, and BSD, (Berkeley Software distribution).
Content originally sourced from wikipedia 11/9/12
(See figure. 1) This shows hoe information/data is transposed throughout a
computer system in operation. Firstly, a signal is created by an action performed by
the user which tells the system what to do. For example, if the user wants to print
out a document, they must first use the mouse to tell the operating system, to tell
the application that you would like to print out a produced document. The
application then tells the operating system to tell the hardware, (printer) to print
the document. These processes take less than a second.
There are many different sorts of computer system that have varied functionality
and contrasting uses. These different
Single User/Single Task Operating System ­ A simple OS, (Operating
System) where the computer has a maximum capacity of one user, and
has only been designed, or only has the computing power to perform
one programmed task at a time. These computers have file systems
with password protection. An example of a single user/single task
operating system is the Palm OS, for Palm handheld computers. Single
user/single task operating systems tend to be not very powerful and
useful in only some circumstances like mobile phones. They can also be
used to operate machinery. (See figure. 2) This image shows an example
of what Palm OS looked like when it was in operation.
Multi-user/Multi-task Operating System ­ Allows the user to carry out
multiple activities simultaneously, such as watching a video whilst using animation software
such as Blender. Multi-user/multi-task operating systems allow more than one program to
run in a given time. They can support either pre-emptive multitasking, where the OS doles
out time to applications (virtually all modern OS) or cooperative multitasking, where the OS
waits for the program to give back control (Windows 3.x, Mac OS 9 and earlier).

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