Yes, you can using USB.
It is fully possible to connect an external hard drive to the computer using a USB cable while the computer is on, assuming that the hard drive is designed to work that way. However, care must be taken when disconnecting the hard drive from the computer again. If you unplug the hard drive without using the "Remove hardware safely" function you may end up losing data or in the worst case scenario ruin your hard drive.
Yes, because USB is designed to be hot-pluggable (meaning you can connect devices while the computer is on).
Yes. In general, USB devices are specifically designed so that you can plug them in without having to turn your computer off.
is a megabyte the largest unit of information
Yes you can :)
Yes. I do this regularly.
Yes, you can using USB.
Yes
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Yes - Windows accepts external hardware while it's running without any problems !
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hot plugging
A physical port, as opposed to a virtual or logical port is an interface on a computer into which you can insert a connector for a device.
Backing up your computer's files means: copying them onto some other device (floppy disk, CD Rom, or jump drive). This is obviously done in case something happens to the computer's non-removable disk. Standard procedure used to be to make a backup disk, but now there are services like that let you store 2-3GB of files online in a secure cloud that you can sync, edit, and share with others and easily access with your login information from any computer, mobile device, or other internet source.
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Yes, you can using USB.
Yes - Windows accepts external hardware while it's running without any problems !
Yes you can. Just remember to 'eject' it before removal as you would any usb drive.
Yes - Windows accepts external hardware while it's running without any problems !
True.
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Graphics cards connect to the computer only through the connectors present on the motherboard so an external graphics card is unfortunately not an option. You can always switch your video card entirely, but be sure to check if the motherboard you have supports it.
Use a card reader, as cheap of $5. Insert your SD card in the reader slot. Connect the reader to computer. Computer understands there is an external SD connected to it. So rest is as easy as drag and drop folders
You can import clip-art from external sources, by using the Insert tab at the top of a document, selecting Picture - and browsing your computer for the image.
Usually, you will just need to insert the floppies into the floppy disk drive on a computer. If your computer does not have a floppy drive (most made since 2003 don't), you will need to purchase an external floppy drive. These connect to your computer through a USB port. After you plug it in and insert a disk, you should be able to find the drive and view your pictures.