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Practise Questions (Give two advantages of open-source software.[2] (Lower…
Practise Questions
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- Consider you are selecting an operating system for a computer system that allows a pilot to raise or lower the wheels on an airplane.
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b. This system could use a graphical user interface, a command line interface or a menu-based interface.
• Give one reason why it may be suitable to use each type of interface. [3
A graphical-user interface would be used as a visual way of interacting with a computer, using icons etc, to lower or raise the wheels. A command line interface would be used to view and manage computer files. A menu-based interface is an easier way of navigating the devices and programs that the pilot interacts with. It allows the pilot to make choice like raising or lowering the wheels.
GUI: easy to train new pilots; may take less time to click a button or touch a button or screen.
CLI: pilots likely to be train and therefore, be expert users.
MGI: very few possible actions so menu will be easy to navigate, quickly reminds the pilot of all possible actions.
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compression software - reduces the size of files
encryption software - used for obscuring data so that it cannot be read by unauthorised users
disk defragmenters - used to rearrange how data is stored on a hard disk drive so that data access is more efficient
device drivers - used to allow the computer to communicate the peripheral