Operating Systems

Operating Systems

1. Types

   • Graphical User Interface (GUI)
     • Advantages
       • This type of user interface is easy to use, especially for a beginner
       • It is easy to explore and ind your way around the system using a WIMP/ GUI interface
       • You do not have to learn complicated commands
     • Disadvantages
       • GUIs take up a much larger amount of hard disk space than other interfaces
       • They need significantly more memory (RAM) to run than other interface types
       • They use more processing power than other types of interface
   • Command Line (CLI)
     • Advantages
       • If the user knows the correct commands then this type of interface can be much faster than any other type of interface
       • A low resolution, cheaper monitor can be used with this type of interface
       • A CLI does not require Windows to run
     • Disadvantage
       • For someone who has never used a CLI, it can be very confusing
       • Commands have to be typed precisely. If there is a spelling error the command will fail
   • Menu
     • Advantages
       • Extremely easy to use. Someone who has never seen the interface before can work out what to do
       • Step-by-step options are given so that the user doesn't have to remember anything
       • They don't need huge amounts of processing power or memory
     • Disadvantages
       • A poorly designed menu interface may be slow to use
       • You often can't go to the exact place you want right at the start. You have to work your way through the menu screens even if you know where you want to get to.

2. Factors Affecting

   • Memory failures.
   • Conflicts with other utility software i.e. multiple anti-virus applications on one device.
   • Bandwidth
   • Amount of memory available.
   • User needs in terms of performance i.e. browsing the internet or talking to friends using VOIP (voice over internet protocol), it may not require a printer therefore no printer driver.