By closing a file, any unsaved data that is held in the buffer is saved to its file. Also, when a program closes files that are no longer being used, the files will not take up more of the operating system's resources than necessary.
you should only close the lid if you shut it down you are just going to make it harder for you
Never.A program should handle exceptions, but should NEVER USE exceptions to control program flow.
You should be finished by the time I get there.
Maybe there is still one software is using this file! You should close the software first if you want to operate the file!,for examble,if your computer has a movie file in D disk,and the media software is using it meanwhile,at this time ,you want to delete the movie file for some reasons,when you click"delete",the system will alert you that "another program is currently using this file"! So what you need to do is to close the software which is using the file you want to delete!
global
When u minimize a window i makes it smaller so in a way its like u have put it to 1 side Minimizing a window keeps it open and let processes that are using the window continue to run. You can restore a minimized window by clicking on its icon a the bottom of the screen. Closing a window "kills" it and all processes that are using it. It you are finished with a program you should close its window.
A fire extinguisher.
When using a camera, you should be able to focus as close as the minimum focusing distance specified by the lens. This distance can vary depending on the lens and camera setup.
So that unauthorised people cannot use it.
When you are finished using an application, you need to close and unload it. This is usually done through the File menu and then picking Exit. You can also hold down the Alt key and then press the F4 key. You could also click the X in the top right corner of the screen.
After using a reagent, you should securely close the container to prevent spills or contamination. Store the reagent according to the manufacturer's instructions, making sure to label it with the date it was opened and any other relevant information. Dispose of any waste following proper laboratory protocols.
You can plug up your 2012 iMac when you are finished using it. Nothing will happen to the iMac. After the iMac is fully charged, make sure to unplug it.