Difference between operating system and computer programs,
Operating system
The operating system is a special type of program that loads automatically when you start your computer.the operating system allow to use the advanced feature of a modern computer without having to learning all the details of how the hardware works.there are a number of different types of operating system in common use.the ibm pc (personal computer) was introduced way back 1981 and was originally supplied with an operating system called dos ( disk operaing sytem). This operating system was very basic,and you had to be bit of a computer expert jus to understand how to use it.it was not user-friendly!
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Later on microsoft introduced windows and this is the operating system that is most widely used on pcs today.
To complicate matters further, there are a number of different types of windows.teh first widely used version of windows was called windows 3.1 .thsi was more powerful than dos and fas easier to use.it had a graphical user interface(gui),i.e. you could 'drive' it using a mouse and drop down menus. Later windows nt and windows 95 were introduced. The good news is that windows 95 and windowsnt look almost identical and are boht even easier to use than windows 3.1
Application program
An application program is the type of programe that you use once the operating system has been loaded.examples included word processing programs, (for producing letters, memos etc), databases(for organizing large amounts of information ) and graphics programs(for producing pictures,advertisements,manuals etc).
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