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1586872
OPERATING SYSTEM
Description
Mind Map on OPERATING SYSTEM, created by Charlotte Devlin on 05/11/2014.
Mind Map by
Charlotte Devlin
, updated more than 1 year ago
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Created by
Charlotte Devlin
almost 10 years ago
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Resource summary
OPERATING SYSTEM
WHAT IS AN OPERATING SYSTEM?
An operating system is a low-level software that supports a computers function, such as schueduling tasks.
WHAT IS THE PURPOSE OF AN OPERATING SYSTEM?
Its an essential componet of the system software in a computer system. Application programs usually require an operating system to function.
WHAT ARE THE MOST COMMON OPERATING SYSTEMS?
Windows, Apple, Linux and Ubuntu
FUNCTIONS
Provides a user interface
Booting the computer
Managing the hardware and software
File managment
WHAT IS GUI?
Stands for graphical user interface. It allows users to interact with electronic devices through graphical icons and visual indicators.
Advantages:
It can be user friendly
It can be more attractive for non-technical people
It looks more professional
Disadvantages:
When it is not properly built, it can be difficult to work with
Requires more memory resource than a non-graphical one
Might require installation of additional software (e.g. running time)
WHAT IS A CLI?
Was the primary means of interaction with most computer systems until the introduction of the video display terminal in the mid-1960s
Advantages:
Needs much less memory (RAM) in order to use it than other user interfaces
Uses less CPU processing time compared to others
Doesn't require Windows to run
Disadvantages:
Can be confusing for someone who has never used it before
Commands have to be types precisely; if there is a spelling error the command will fail
You can't guess what the instruction might be. You've got to know all the instructions in order to succed
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