The balanced DFD (Data flow diagram) is the concept of the balancing all the state and incoming and also outgoing flow in the system.
The balanced data flow diagram basically ensure that the output and input data flow maintain the consistency in the DFD and are properly aligned the flow of data.
A balanced DFD does not include any type of flowchart in the control statement and also does not contain any crossing lines.
The correct answer is letter D. they're convenient. The chief reason that family and friends are frequent targets of aggression is that (D) they're convenient. Aggression is he feeling of harmful in terms of social interaction with the intention or goal of damaging other individual. Family and friends have already made a big interaction between each other.
<em>Manage memories - Operating system has utilities that could help users to manage their memories. Such utilities include Disk Maintenance and Disk Degfragmentation which are helpful to detect problems within your disk storage.
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<em>Works as an intermediary between the hardware and the software - OS has a special program called kernel. Basically, a kernel can recognize a command in relation to hardware. For example, when the user click on Ctrl and P keys on the keyboard, the kernel would send alert to the corresponding hardware which is the printer then do the task.
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<em>Manages which program gets access to memory and for how long - OS manages tasks. It supports multi tasking which means several processes can happen at a time. In order to do that, OS manage the computation and priorities of tasks to ensure that the user can have a good experience.</em>
The class "JOptionPane" are used to pop / create dialogue boxes for the user to enter the input for a question.
JOptionPane contains methods to create input dialogue boxes, message dialogue boxes, option dialogue boxes and confirm dialogue boxes.
The dialogue boxes can be just message dialogue boxes which gives some message to the user. It doesn't require anything to be input from the user. It is just a message box.
Where as input dialogue box requires the user to input something.
Confirm dialogue box asks the user to answer a question yes / no / cancel.
Option dialogue box asks the user to select the options.
So, option (d) JOptionPane is the answer for the question.
Option (a), (b) and (c) are used for different purposes but not to create dialogue boxes. So, options (a), (b) and (c) are not the correct answers for the question.
